Pneumothorax occurs when air or other gas builds up in the pleural space and may cause part or all of the lung to collapse. There are different types of pneumothorax: spontaneous, tension, and traumatic. Learn the symptoms, causes, and treatment.
Pneumothorax - Collapsed Lung
Image by BruceBlaus
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Pneumothorax - Collapsed Lung
Image by BruceBlaus
Pneumothorax - Collapsed Lung
Pneumothorax - Collapsed Lung
Image by BruceBlaus
What Is Pneumothorax?
A pneumothorax is when air leaks into the space between one of your lungs and your chest wall. This is called the ‘pleural space’.
A pneumothorax can cause a ‘collapsed lung’ when the air in your pleural space pushes on your lung. In most cases, only some of the lung collapses.
A tension pneumothorax is when there is increasing pressure in the air around your lung. It causes the heart and lungs to stop working properly and is a medical emergency.
Source: Healthdirect Australia
Additional Materials (9)
Pneumothorax CXR
Left pneumothorax. This X-ray is used on clinicalcases.org to illustrate a fictional case history of tension pneumothorax. Note the large, well-demarcated area devoid of lung markings, the tracheal deviation and movement of the heart away from the affected side. There is also small pleural effusion on the left side.
The patient's left is your right (as if you are looking at the patient facing you). The left-right orientation is assisted by the shape of the heart, a small amount of air in the stomach under the left side of the diaphragm on the left, and the radio-opaque liver under the right side of the diaphragm. The sternoclavicular joints are symmetrically situated indicating that the X-ray is not rotated. Generally, a radiopaque X-ray marker showing L or R indicates the patient's orientation, but one is not present on this X-ray. The metallic spots are snaps for EKG (or ECG) readings.
Image by Photographed by User Clinical Cases 00:42, 7 November 2006/Wikimedia
Tension pneumothorax
illustration of a tension pneumothorax showing deviated trachea and collapsed lung
Image by Baedr-9439/Wikimedia
PNEUMOTHORAX vs TENSION PNEUMOTHORAX
Video by NursingSOS/YouTube
Pneumothorax and Tension Pneumothorax
Video by Dr. Suhaib Chaudry M.D./YouTube
Pneumothorax Nursing, Pathophysiology, Interventions | Open vs Closed vs Tension Pneumothorax
Video by RegisteredNurseRN/YouTube
Tension Pneumothorax – Emergency Medicine | Lecturio
Video by Lecturio Medical/YouTube
Needle Aspiration of a Pneumothorax
Video by Larry Mellick/YouTube
Pneumothorax and Chest Tube
Video by Learning in 10/YouTube
Pneumothorax
Video by Zero To Finals/YouTube
Pneumothorax CXR
Photographed by User Clinical Cases 00:42, 7 November 2006/Wikimedia
Tension pneumothorax
Baedr-9439/Wikimedia
4:09
PNEUMOTHORAX vs TENSION PNEUMOTHORAX
NursingSOS/YouTube
3:39
Pneumothorax and Tension Pneumothorax
Dr. Suhaib Chaudry M.D./YouTube
18:20
Pneumothorax Nursing, Pathophysiology, Interventions | Open vs Closed vs Tension Pneumothorax
RegisteredNurseRN/YouTube
12:46
Tension Pneumothorax – Emergency Medicine | Lecturio
Lecturio Medical/YouTube
12:46
Needle Aspiration of a Pneumothorax
Larry Mellick/YouTube
8:51
Pneumothorax and Chest Tube
Learning in 10/YouTube
8:19
Pneumothorax
Zero To Finals/YouTube
Causes
An illustration depicting fractured ribs
Image by BruceBlaus
An illustration depicting fractured ribs
An illustration depicting fractured ribs
Image by BruceBlaus
What Causes a Pneumothorax?
There are several different types and causes of pneumothorax.
Spontaneous pneumothorax
A spontaneous pneumothorax happens suddenly without an external event (such as trauma or a medical procedure).
A primary spontaneous pneumothorax is the most common type of pneumothorax. It usually happens in young people (including children) with no underlying lung disease.
It’s not known what causes primary spontaneous pneumothorax, but the risk is higher for people who smoke. It’s also more common in males who are tall and slim.
A secondary spontaneous pneumothorax can happen in people with existing lung conditions, such as:
chronic obstructive pulmonary disease (COPD)
asthma
pneumonia
tuberculosis
sarcoidosis
cystic fibrosis
These lung conditions can weaken the edge of the lung, making it more likely to tear and let air escape.
Traumatic pneumothorax
This type of pneumothorax is caused by trauma, such as:
a car accident
broken ribs
a stab wound
An ‘iatrogenic pneumothorax’ is a traumatic pneumothorax that occurs as a result of a medical procedure.
Source: Healthdirect Australia
Symptoms
Depiction of a person suffering from chest pain
Image by https://www.myupchar.com
Depiction of a person suffering from chest pain
Depiction of a person suffering from chest pain. The typical causes of chest pain have been mentioned.
Image by https://www.myupchar.com
What Are the Symptoms of a Pneumothorax?
The most common symptoms of pneumothorax are:
sudden, sharp stabbing pain on one side of the chest, made worse by breathing in
breathing problems
Symptoms and signs of a tension pneumothorax can include:
severe distress
fast heart rate
difficulty breathing
fast and shallow breathing
cyanosis (blueish lips and skin)
sweating
low blood pressure
If you have trouble breathing or chest pain, call 911 for an ambulance.
Source: Healthdirect Australia
Additional Materials (3)
Pneumothorax and Chest Tube
Video by Learning in 10/YouTube
Pneumothorax: Signs and Symptoms | Ausmed Explains...
Image by Photographed by User Clinical Cases 00:42, 7 November 2006/Wikimedia
Pneumothorax CXR
Left pneumothorax. This X-ray is used on clinicalcases.org to illustrate a fictional case history of tension pneumothorax. Note the large, well-demarcated area devoid of lung markings, the tracheal deviation and movement of the heart away from the affected side. There is also small pleural effusion on the left side.
The patient's left is your right (as if you are looking at the patient facing you). The left-right orientation is assisted by the shape of the heart, a small amount of air in the stomach under the left side of the diaphragm on the left, and the radio-opaque liver under the right side of the diaphragm. The sternoclavicular joints are symmetrically situated indicating that the X-ray is not rotated. Generally, a radiopaque X-ray marker showing L or R indicates the patient's orientation, but one is not present on this X-ray. The metallic spots are snaps for EKG (or ECG) readings.
Image by Photographed by User Clinical Cases 00:42, 7 November 2006/Wikimedia
How Is a Pneumothorax Diagnosed?
Your doctor will ask about your symptoms and examine you, including listening to your chest with a stethoscope.
A chest x-ray is usually recommended to diagnose a pneumothorax. Sometimes a CT scan or ultrasound scan of the chest is also recommended.
Source: Healthdirect Australia
Additional Materials (2)
Primary Spontaneous Pneumothorax
Chest X-ray showing the features of pneumothorax
Image by Karthik Easvur
X-ray of pneumothorax signs
Chest X-ray showing the features of pneumothorax
Image by Karthik Easvur
Primary Spontaneous Pneumothorax
Karthik Easvur
X-ray of pneumothorax signs
Karthik Easvur
Chest X-Ray Test
Chest X-Ray Test
Also called: CXR, Chest X Ray, Chest Radiograph, Chest Radiography, Chest Film
A chest X-ray is an imaging test that uses electromagnetic waves to create pictures of the structures in and around the chest. The test can help diagnose and monitor conditions of the heart, lungs, bones, and chest cavity.
Chest X-Ray Test
Also called: CXR, Chest X Ray, Chest Radiograph, Chest Radiography, Chest Film
A chest X-ray is an imaging test that uses electromagnetic waves to create pictures of the structures in and around the chest. The test can help diagnose and monitor conditions of the heart, lungs, bones, and chest cavity.
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Use the slider below to see how your results affect your
health.
Your result is Normal.
X rays are electromagnetic waves. They use ionizing radiation to create pictures of the inside of your body. A chest x ray takes pictures of the inside of your chest. The different tissues in your chest absorb different amounts of radiation. Your ribs and spine are bony and absorb radiation well. They normally appear light on a chest x ray. Your lungs, which are filled with air, normally appear dark.
Related conditions
A chest x ray is a painless, noninvasive test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. "Noninvasive" means that no surgery is done and no instruments are inserted into your body. This test is done to find the cause of symptoms such as shortness of breath, chest pain, chronic cough (a cough that lasts a long time), and fever.
Chest x rays help doctors diagnose conditions such as pneumonia (nu-MO-ne-ah), heart failure, lung cancer, lung tissue scarring, and sarcoidosis (sar-koy-DO-sis). Doctors also may use chest x rays to see how well treatments for certain conditions are working. Also, doctors often use chest x rays before surgery to look at the structures in the chest.
Chest x rays are the most common x-ray test used to diagnose health problems.
Doctors may recommend chest x rays for people who have symptoms such as shortness of breath, chest pain, chronic cough (a cough that lasts a long time), or fever. The test can help find the cause of these symptoms.
Chest x rays look for conditions such as pneumonia, heart failure, lung cancer, lung tissue scarring, or sarcoidosis. The test also is used to check how well treatments for certain conditions are working.
Chest x rays also are used to evaluate people who test positive for tuberculosis (tu-ber-kyu-LO-sis) exposure on skin tests.
Sometimes, doctors recommend more chest x rays within hours, days, or months of an earlier chest x ray. This allows them to follow up on a condition.
People who are having certain types of surgery also may need chest x rays. Doctors often use the test before surgery to look at the structures inside the chest.
Depending on your doctor's request, you'll stand, sit, or lie for the chest x ray. The technician will help position you correctly. He or she may cover you with a heavy lead apron to protect certain parts of your body from the radiation.
The x-ray equipment usually consists of two parts. One part, a box-like machine, holds the x-ray film or a special plate that records the picture digitally. You'll sit or stand next to this machine. The second part is the x-ray tube, which is located about 6 feet away.
Before the pictures are taken, the technician will walk behind a wall or into the next room to turn on the x-ray machine. This helps reduce his or her exposure to the radiation.
Usually, two views of the chest are taken. The first is a view from the back. The second is a view from the side.
For a view from the back, you'll sit or stand so that your chest rests against the image plate. The x-ray tube will be behind you. For the side view, you'll turn to your side and raise your arms above your head.
If you need to lie down for the test, you'll lie on a table that contains the x-ray film or plate. The x-ray tube will be over the table.
You'll need to hold very still while the pictures are taken. The technician may ask you to hold your breath for a few seconds. These steps help prevent a blurry picture.
Although the test is painless, you may feel some discomfort from the coolness of the exam room and the x-ray plate. If you have arthritis or injuries to the chest wall, shoulders, or arms, you may feel discomfort holding a position during the test. The technician may be able to help you find a more comfortable position.
When the test is done, you'll need to wait while the technician checks the quality of the x-ray pictures. He or she needs to make sure that the pictures are good enough for the doctor to use.
You don't have to do anything special to prepare for a chest x ray. However, you may want to wear a shirt that's easy to take off. Before the test, you'll be asked to undress from the waist up and wear a gown.
You also may want to avoid wearing jewelry and other metal objects. You'll be asked to take off any jewelry, eyeglasses, and metal objects that might interfere with the x-ray picture. Let the x-ray technician (a person specially trained to do x-ray tests) know if you have any body piercings on your chest.
Let your doctor know if you're pregnant or may be pregnant. In general, women should avoid all x-ray tests during pregnancy. Sometimes, though, having an x ray is important to the health of the mother and fetus. If an x ray is needed, the technician will take extra steps to protect the fetus from radiation.
Chest x rays have few risks. The amount of radiation used in a chest x ray is very small. A lead apron may be used to protect certain parts of your body from the radiation.
The test gives out a radiation dose similar to the amount of radiation you're naturally exposed to over 10 days.
Chest x rays show the structures in and around the chest. The test is used to look for and track conditions of the heart, lungs, bones, and chest cavity. For example, chest x-ray pictures may show signs of pneumonia, heart failure, lung cancer, lung tissue scarring, or sarcoidosis.
Chest x rays do have limits. They only show conditions that change the size of tissues in the chest or how the tissues absorb radiation. Also, chest x rays create two-dimensional pictures. This means that denser structures, like bone or the heart, may hide some signs of disease. Very small areas of cancer and blood clots in the lungs usually don't show up on chest x rays.
For these reasons, your doctor may recommend other tests to confirm a diagnosis.
https://www.nhlbi.nih.gov/health-topics/chest-x-ray [accessed on Aug 25, 2021]
https://medlineplus.gov/ency/article/003804.htm [accessed on Aug 25, 2021]
https://www.radiologyinfo.org/en/info/chestrad [accessed on Aug 25, 2021]
https://www.emedicinehealth.com/chest_x-ray/article_em.htm [accessed on Aug 25, 2021]
Normal reference ranges can vary depending on the laboratory and the method used for testing. You must use the range supplied by the laboratory that performed your test to evaluate whether your results are "within normal limits."
Additional Materials (50)
Chest X-Ray Basics in 5 min
Video by Nick Smith/YouTube
How X-rays see through your skin - Ge Wang
Video by TED-Ed/YouTube
What causes Acute respiratory distress syndrome (ARDS) and who is at Risk?
Chest X-ray of transfusion-related acute lung injury (TRALI syndrome) compared to chest X-ray of the same subject afterwards.
Image by Altaf Gauhar Haji, Shekhar Sharma, DK Vijaykumar and Jerry Paul
Tuberculosis X-ray
An anteroposterior X-ray of a patient diagnosed with advanced bilateral pulmonary tuberculosis. This AP X-ray of the chest reveals the presence of bilateral pulmonary infiltrate (white triangles), and caving forma.
Image by CDC / Der Lange
Respiratory Syncytial Virus
This highly-magnified, 1981 transmission electron microscopic (TEM) image, reveals some of the morphologic traits exhibited by a human respiratory syncytial virus (RSV). The virion is variable in shape, and size, with an average diameter between 120-300nm. RSV is the most common cause of bronchiolitis and pneumonia among infants and children, under 1-year of age.
Image by CDC/ E. L. Palmer
Q Fever Pneumonia X-ray
Combination of two x-rays (A) normal chest x-ray (B) x-ray documenting Q fever pneumonia.
Image by US Gov
Chest X Ray
A Lateral Chest X-Ray with the heart shadow outlined.
Image by US Army
Projectional radiography
Image relating focal spot size to geometric unsharpness in projectional radiography.
Image by Source images by Blausen Medical and LadyofHats (Mariana Ruiz Villarreal) Derivative by Mikael Haggstrom
Chest Radiograph
Chest X-Ray : Specialized test, like a computerized tomography (CT) scan or a magnetic resonance imaging (MRI) scan, may be needed to confirm the presence of an aneurysm.
Image by TheVisualMD
X-ray of Healthy Lung
This image shows an x-ray of healthy lungs.
Image by TheVisualMD
Cancer screening
Cancer Imaging: X-Rays : Chest X-rays can be used to show the presence of tumors, as for lung cancer, but they may also indicate problems associated with cancer. An X-ray may produce images suggestive of fluid accumulation, masses, or enlarged lymph nodes.
Image by TheVisualMD
Lung Cancer
Chest X-ray (Cancer): This is an x-ray image of a chest. Both sides of the lungs are visible with a growth on the left side of the lung, which could possibly be lung cancer.
Image by National Cancer Institute
Chest X Ray
Mediastinal structures on a chest radiograph.
Image by Mikael Haggstrom, from source images by ZooFari, Stillwaterising and Gray's Anatomy creators
CT Chest Scan of Pleura effusion
CT scan of chest showing loculated pleural effusion in left side. Some thickening of pleura is also noted. From my personal collection. Permission obtained from patient.
Image by Drriad
Chest X-ray (Cancer)
This is an x-ray image of a chest. Both sides of the lungs are visible with a growth on the left side of the lung, which could possibly be lung cancer.
Image by National Cancer Institute / Unknown Photographer
This browser does not support the video element.
CT Scans (VIDEO)
This video shows how modern science of scanning can expose the health condition of the patient. The video starts with a patient undergoing CT scanning, an x-ray procedure that combines many x-ray images with the aid of a computer to generate cross-sectional views and, if needed, three-dimensional images of the internal organs and structures of the body. Visible are the heart, lungs, and arteries of a patient.
Video by TheVisualMD
Chest X-Ray
Air-filled trachea and lungs Diaphragmatic domes Mediastinal structures Vascular markings
Arrows indicate costophrenic angles
Image by US Army
Gallstones
Gallstones as seen on plain x-ray.
Image by James Heilman, MD
Hemoptysis x-ray
Hemoptysis can be discovered with the help of radiology.
Image by Aidan Jones from Oxford, U.K.
X-ray of Lung with Pulmonary Edema
Within the lungs, the main airways (bronchi) branch off into smaller passageways, the smallest of which are called bronchioles. At the end of the bronchioles are tiny air sacs (alveoli). Pulmonary edema is a condition caused when excess fluid collects in these air sacs, making it difficult to breathe. Fluid in the lungs can be caused by pneumonia, acute respiratory distress and other conditions, but in most cases, the cause of pulmonary edema is heart problems (when a damaged heart can't pump enough blood and fluid leaks into the lungs).
Image by TheVisualMD
What To Expect During and After Implantable Cardioverter Defibrillator Surgery
A normal chest X-ray after placement of an ICD, showing the ICD generator in the upper left chest and the ICD lead in the right ventricle of the heart. Note the 2 opaque coils along the ICD lead.
Image by Gregory Marcus, MD, MAS, FACC
This browser does not support the video element.
Chest X-ray: NCI B-roll [video]
NCI B-roll of a patient receiving a Chest X-ray. This video is silent.
Video by National Cancer Institute (NCI)
X-Ray of Aneurysm within Chest frontal view
Most aneurysms are detected in the course of an exam, such as a physical exam or a chest X-ray, being performed for a different reason.
Image by TheVisualMD
Pleural Effusion: Tests
Pleural effusion Chest x-ray of a pleural effusion. The arrow A shows fluid layering in the right pleural cavity. The B arrow shows the normal width of the lung in the cavity. A pleural effusion: as seen on chest X-ray. The A arrow indicates fluid layering in the right chest. The B arrow indicates the width of the right lung. The volume of the lung is reduced because of the collection of fluid around the lung.Pleural effusion Chest x-ray of a pleural effusion. The arrow A shows fluid layering in the right pleural cavity. The B arrow shows the normal width of the lung in the cavity. A pleural effusion: as seen on chest X-ray. The A arrow indicates fluid layering in the right chest. The B arrow indicates the width of the right lung. The volume of the lung is reduced because of the collection of fluid around the lung.
Image by CDC InvictaHOG
Coccidioidomycosis
This anteroposterior (AP) chest x-ray revealed pulmonary changes indicative of pulmonary fibrosis in a case of coccidioidomycosis, caused by fungal organisms of the genus, Coccidioides. Because these changes also resemble those seen in other lung infections including tuberculosis, the findings uncovered with a chest x-ray needs to be coupled with serologic testing, as well as possible tissue biopsy. The degree of fibrotic changes, indicative of scarring found on x-ray, can be directly correlated to the severity of the fungal infection.
Image by CDC/ Dr. Lucille K. Georg
How Is Acute respiratory distress syndrome (ARDS) Diagnosed?
Chest X-Ray: Acute respiratory distress syndrome on plain Xray
Image by James Heilman, MD
How Are Asbestos-Related Lung Diseases Diagnosed?
Early Asbestosis in a Retired Pipe Fitter : Chest X-ray in asbestosis shows plaques above diaphragm
Image by Clinical Cases
Aspergillosis
This was a photomicrograph of a lung tissue specimen, harvested from a caged, sulfur-crested cockatoo, that depicted some of the histopathologic changes that had been caused by the fungal organism, Aspergillus fumigatus, in a case of avian pulmonary aspergillosis. Here, you are able see how the periodic acid-Schiff (PAS) stain, revealed A. fumigatus ultrastructural morphology including conidial heads and mycelium.
Image by CDC/ Dr. William Kaplan
Pleural Effusion - Defined
A large left sided pleural effusion as seen on an upright chest X-ray
Image by Drriad
Pleural Effusion: Tests
A large left sided pleural effusion as seen on an upright chest X-ray
Image by James Heilman MD
Breast implants
Chest X-ray showing breast implants
Image by James Heilman
Living With Idiopathic Pulmonary Fibrosis
No cure is available for idiopathic pulmonary fibrosis (IPF) yet. Your symptoms may get worse over time. As your symptoms worsen, you may not be able to do many of the things that you did before you had IPF.
However, lifestyle changes and ongoing care can help you manage the disease.
If you're still smoking, the most important thing you can do is quit. Talk with your doctor about programs and products that can help you quit. Also, try to avoid secondhand smoke. Ask family members and friends not to smoke in front of you or in your home, car, or workplace.
Image by Drriad
Symptoms and Spread of SARS (Severe acute respiratory syndrome)
A chest x-ray showing increased opacity in both lungs, indicative of pneumonia, in a patient with SARS.
Image by CDC
Chilaiditi syndrome
Chest X-ray showing obvious Chilaiditi's sign, or presence of gas in the right colic angle between the liver and right hemidiaphragm (left side of the image).
Piper's Sign: In days gone by the lateral chest x-ray (demonstrating greater opacity in the aortic arch and descending aorta than the thoracic spine) gave an indication to the degree of calcified plaque burden a patient had. This has been known as Piper's sign and can often be seen in elderly persons particularly those with concomitant osteoporosis.
Image by U4077905
Aspect of a bulky thymoma (red circle) on the chest x-ray.
Aspect of a bulky thymoma (red circle) on the chest x-ray.
Image by Stockholm
Lambert–Eaton myasthenic syndrome-Chest X-ray showing a tumor in the left lung (right side of the image)
Lambert–Eaton myasthenic syndrome-Chest X-ray showing a tumor in the left lung (right side of the image)
Image by Lange123 at German Wikipedia
Chest X-ray in influenza and Haemophilus influenza
Chest X-ray of a 76 year old woman, who developed cough and labored breathing. First testing showed influenza B virus, and later a nasopharyngeal swab detected Haemophilus influenzae. The H influenzae presumably developed as an opportunistic infection secondary to the flu. This X-ray was taken 2 weeks after cultures and start of antibiotics, showing delayed pneumonic infiltrates that were only vaguely visible on initial (not shown) X-rays.
Image by Mikael Häggström
Chest X-ray in influenza and Haemophilus influenzae, lateral
Chest X-ray of a 76 year old woman, who developed cough and labored breathing. First testing showed influenza B virus, and later a nasopharyngeal swab detected Haemophilus influenzae. The H influenzae presumably developed as an opportunistic infection secondary to the flu. This X-ray was taken 2 weeks after cultures and start of antibiotics, showing delayed pneumonic infiltrates that were only vaguely visible on initial (not shown) X-rays.
Image by Mikael Häggström
Fungal Parasites and Pathogens
(a) Ringworm presents as a red ring on skin; (b) Trichophyton violaceum, shown in this bright field light micrograph, causes superficial mycoses on the scalp; (c) Histoplasma capsulatum is an ascomycete that infects airways and causes symptoms similar to influenza. (credit a: modification of work by Dr. Lucille K. Georg, CDC; credit b: modification of work by Dr. Lucille K. Georg, CDC; credit c: modification of work by M. Renz, CDC; scale-bar data from Matt Russell)
Image by CNX Openstax
This anteroposterior (AP) chest x-ray revealed radiologic evidence of pulmonary pneumocystosis in the form of bilateral pulmonary interstitial infiltrates. This infection was due to the presence of an opportunistic fungal infection by the fungal organism Pneumocystis jirovecii, formerly known as Pneumocystis carinii. (This image was provided by Jonathan W.M. Gold. M.D., Assoc. Dir. Special Microbiology Lab, Assist. Attending Physician, Memorial Sloan-Kettering Cancer Center and Assist. Prof. of Medicine, Cornell Univ. Med. College, New York.)
Pneumocystis jirovecii is the causative agent of Pneumocystis pneumonia (PCP), one of the most frequent and severe opportunistic infections in immunocompromised patients. Pneumocystis organisms represent a large group of species of atypical fungi with universal distribution and pulmonary tropism, and each species has a strong specificity for a given mammalian host species.
Image by CDC/ Jonathan W.M. Gold, MD
Chest X-ray PA inverted and enhanced
Chest X-ray PA inverted and enhanced
Image by Stillwaterising
Chest X-Ray of Canadian dollar coin in esophagus of child
PA view Chest X-Ray of Canadian dollar coin in esophagus of child. Released per permission of mother.
Image by Samir (talk)
Chest X Ray
Structures shown: Air-filled trachea and lungs Diaphragmatic domes Mediastinal structures Vascular markings. Arrows indicate costophrenic angles
Image by US Army
Thoracic diaphragm
X-ray of chest, showing top of diaphragm.
Image by OpenStax College
Chest X Ray
Roentgenogram or Medical X-ray image. May not be to scale.
Aspect of a bulky thymoma (red circle) on the chest x-ray.
Stockholm
Lambert–Eaton myasthenic syndrome-Chest X-ray showing a tumor in the left lung (right side of the image)
Lange123 at German Wikipedia
Chest X-ray in influenza and Haemophilus influenza
Mikael Häggström
Chest X-ray in influenza and Haemophilus influenzae, lateral
Mikael Häggström
Fungal Parasites and Pathogens
CNX Openstax
This anteroposterior (AP) chest x-ray revealed radiologic evidence of pulmonary pneumocystosis in the form of bilateral pulmonary interstitial infiltrates. This infection was due to the presence of an opportunistic fungal infection by the fungal organism Pneumocystis jirovecii, formerly known as Pneumocystis carinii. (This image was provided by Jonathan W.M. Gold. M.D., Assoc. Dir. Special Microbiology Lab, Assist. Attending Physician, Memorial Sloan-Kettering Cancer Center and Assist. Prof. of Medicine, Cornell Univ. Med. College, New York.)
CDC/ Jonathan W.M. Gold, MD
Chest X-ray PA inverted and enhanced
Stillwaterising
Chest X-Ray of Canadian dollar coin in esophagus of child
A chest computed tomography (CT) scan is an imaging test that takes detailed pictures of the lungs and the inside of the chest. Computers combine the pictures to create a 3-D model showing the size, shape, and position of the lungs and structures in the chest.
A chest computed tomography (CT) scan is an imaging test that takes detailed pictures of the lungs and the inside of the chest. Computers combine the pictures to create a 3-D model showing the size, shape, and position of the lungs and structures in the chest.
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Use the slider below to see how your results affect your
health.
Your result is Normal.
A chest CT scan provides detailed pictures of the size, shape, and position of your lungs and other structures in your chest. A normal chest CT means your chest appears normal.
Related conditions
A chest CT scan is a more detailed type of chest X-ray. This painless imaging test takes many detailed pictures, called slices, of your lungs and the inside of your chest. Computers can combine these pictures to create three-dimensional (3D) models to help show the size, shape, and position of your lungs and structures in your chest.
This imaging test is often done to follow up on abnormal findings from earlier chest x rays. A chest CT scan also can help determine the cause of lung symptoms such as shortness of breath or chest pain, or check to see if you have certain lung problems such as a tumor, excess fluid around the lungs that is known as pleural effusion, pulmonary embolism, emphysema, tuberculosis, and pneumonia.
A chest CT scan provides detailed pictures of the size, shape, and position of your lungs and other structures in your chest. Doctors use this test to:
Follow up on abnormal results from standard chest x rays.
Find the cause of lung symptoms, such as shortness of breath or chest pain.
Find out whether you have a lung problem, such as a tumor, excess fluid around the lungs, or a pulmonary embolism (a blood clot in the lungs). The test also is used to check for other conditions, such as tuberculosis, emphysema, and pneumonia.
Your doctor may recommend a chest CT scan if you have symptoms of lung problems, such as chest pain or trouble breathing. The scan can help find the cause of the symptoms.
A chest CT scan looks for problems such as tumors, excess fluid around the lungs, and pulmonary embolism (a blood clot in the lungs). The scan also checks for other conditions, such as tuberculosis, emphysema, and pneumonia.
Your doctor may recommend a chest CT scan if a standard chest x ray doesn't help diagnose the problem. The chest CT scan can:
Provide more detailed pictures of your lungs and other chest structures than a standard chest x ray
Find the exact location of a tumor or other problem
Show something that isn't visible on a chest x ray
Your chest CT scan may be done in a medical imaging facility or hospital. The CT scanner is a large, tunnel-like machine that has a table. You will lie still on the table and the table will slide into the scanner. Talk to your doctor if you are uncomfortable in tight or closed spaces to see if you need medicine to relax you during the test. You will hear soft buzzing or clicking sounds when you are inside the scanner and the scanner is taking pictures. You will be able to hear from and talk to the technician performing the test while you are inside the scanner. For some diagnoses, a contrast dye, often iodine-based, may be injected into a vein in your arm before the imaging test. This contrast dye highlights areas inside your chest and creates clearer pictures. You may feel some discomfort from the needle or, after the contrast dye is injected, you may feel warm briefly or have a temporary metallic taste in your mouth.
Wear loose-fitting, comfortable clothing for the test. Sometimes the CT scan technician (a person specially trained to do CT scans) may ask you to wear a hospital gown. You also may want to avoid wearing jewelry and other metal objects. You'll be asked to take off any jewelry, eyeglasses, and metal objects that might interfere with the test. You may be asked to remove hearing aids and dentures as well. Let the technician know if you have any body piercing on your chest.
Tell your doctor whether you're pregnant or may be pregnant. If possible, you should avoid unnecessary radiation exposure during pregnancy. This is because of the concern that radiation may harm the fetus.
Chest CT scans have some risks. In rare instances, some people have an allergic reaction to the contrast dye. There is a slight risk of cancer, particularly in growing children, because the test uses radiation. Although the amount of radiation from one test is usually less than the amount of radiation you are naturally exposed to over three years, patients should not receive more CT scans than the number that clinical guidelines recommend. Another risk is that chest CT scans may detect an incidental finding, which is something that doesn’t cause symptoms but now may require more tests after being found.
Talk to your doctor and the technicians performing the test about whether you are or could be pregnant. If the test is not urgent, they may have you wait to do the test until after your pregnancy. If it is urgent, the technicians will take extra steps to protect your baby during this test. Let your doctor know if you are breastfeeding because contrast dye can pass into your breast milk. If you must have contrast dye injected, you may want to pump and save enough breast milk for one to two days after your test or you may bottle-feed your baby for that time.
https://www.nhlbi.nih.gov/health-topics/chest-ct-scan [accessed on Aug 25, 2021]
https://medlineplus.gov/ency/article/003788.htm [accessed on Aug 25, 2021]
Additional Materials (50)
Pleural empyema
CT chest showing large right sided hydro-pneumothorax from pleural empyema. Arrows A: air, B: fluid
Image by Amit Banga, GC Khilnani, SK Sharma1, AB Dey, Naveet Wig and Namrata Banga
How Are Pleurisy and Other Pleural Disorders Diagnosed?
CT with the identification of underlying lung lesion: an apical bulla.
Image by Robertolyra
How Are Pleurisy and Other Pleural Disorders Treated?
Right-sided pneumothorax (right side of image) on CT scan of the chest with chest tube in place.
Image by en:User:Clinical Cases
Chest Radiograph
Chest X-Ray : Specialized test, like a computerized tomography (CT) scan or a magnetic resonance imaging (MRI) scan, may be needed to confirm the presence of an aneurysm.
Image by TheVisualMD
What To Expect During a Coronary Calcium Scan
3D reconstruction of the thin multislice CT, covering human heart and lungs
Image by Semnic
Incision for Open-Chest Bypass Surgery
Open-chest bypass surgery requires the surgeon to make an incision down the center of the chest, along the breastbone. The rib cage is spread open to expose the heart.
Image by TheVisualMD
A child's guide to hospital: CT Chest
Video by The Royal Children's Hospital Melbourne/YouTube
What is it like to have a CT scan? | Cancer Research UK
Video by Cancer Research UK/YouTube
Coronary CT angiography of coronary arteries
Researchers have found that anti-inflammatory biologic therapies used to treat moderate to severe psoriasis can significantly reduce coronary inflammation in patients with the chronic skin condition. Scientists said the findings are particularly notable because of the use of a novel imaging biomarker, the perivascular fat attenuation index (FAI), that was able to measure the effect of the therapy in reducing the inflammation.
The study published online in JAMA Cardiology, has implications not just for people with psoriasis, but for those with other chronic inflammatory diseases, such as lupus and rheumatoid arthritis. These conditions are known to increase the risk for heart attacks and strokes. The study was funded by the National Heart, Lung, and Blood Institute (NHLBI), part of the National Institutes of Health.
In this image: Coronary CT angiography image of the coronary arteries depicting the perivascular fat attenuation index before and after biologic therapy at one-year follow-up for patients with excellent response to biologic therapy.
Image by Oxford Academic Cardiovascular CT Core Lab and Lab of Inflammation and Cardiometabolic Diseases at NHLBI
Coronary CT
Coronary CT
Image by Bác sĩ Nguyễn Minh Đức
CT of the blood vessels and heart
CT of the blood vessels and heart
Image by Bác sĩ Nguyễn Minh Đức
Chest CT showing pulmonary sequestration
chest CT: diagnosis is pulmonary sequestration
Image by RadsWiki
Scimitar syndrome chest CT
Scimitar syndrome chest CT
Image by Matthew Cham, MD
/Wikimedia
Having a Cardiac CT Scan in Hospital
Video by Oxford AHSN/YouTube
What to Expect from a CT Exam with Contrast
Video by RAYUS Radiology™/YouTube
Protocoling chest CTs
Video by Thoracic Radiology/YouTube
Low Dose CT Scans to Look for Lung Cancer
Video by Lee Health/YouTube
Lung Cancer Screening (LCS)
Video by Cleveland Clinic/YouTube
CT Scan of the Chest Explained Clearly - High Resolution CT Scan (HRCT)
Video by MedCram - Medical Lectures Explained CLEARLY/YouTube
What to Expect: CT Scan | Cedars-Sinai
Video by Cedars-Sinai/YouTube
How I Read a Chest CT
Video by Thoracic Radiology/YouTube
Introduction to Computed Tomographic imaging of the Chest
Video by Yale Radiology and Biomedical Imaging/YouTube
Lung Cancer Screening: The Life-saving CT Scan
Video by RAYUS Radiology™/YouTube
How to prepare for a CT scan
Video by Sunnybrook Hospital/YouTube
Using CT Scans to Screen for Lung Cancer
Video by UConn Health/YouTube
Cardiac CT scan
Video by UHP_NHS/YouTube
Real look at Chest, Abdomen and Pelvis CT Scan from Start to Finish.
Video by Dumb Old Dad/YouTube
What is it like to get a CT Scan with Contrast?
Video by STRIDE Project/YouTube
Thorax with Healthy Heart
3D visualization based on scanned human data of a healthy heart in the thorax.
Image by TheVisualMD
Heart and Lungs
The heart and lungs are the primary contents of the thorax. They are interconnected with very large blood vessels. The heart sends oxygen-poor blood through the pulmonary arteries to the lungs, which oxygenate it and return it to the heart through the pulmonary veins. The pulmonary arteries arise from one large pulmonary trunk, and then begin branching exponentially once they enter the lungs in order to reach the functional respiratory units and pick up oxygen. The smallest pulmonary veins then take the oxygenated blood backwards through the lungs and empty into the back of the heart through four larger pulmonary veins. The oxygen-rich blood is then pumped by the heart out into the body through the aorta. Deoxygenated blood from body tissues returns to the heart through the superior and inferior vena cava and the cardiac cycle repeats continuously. The pulmonary veins and arteries are the only case where arteries carry deoxygenated blood and veins carry blood that has been oxygenated.
Image by TheVisualMD
Thorax with Muscle Involved in Respiration
3D visualization of an anterior view of the muscles involved in respiration. The primary job of the thorax is to promote movements necessary for breathing. Three muscles of the thorax assist in this function; the external intercostals, internal intercostals and diaphragm. The intercostals do the job of lifting the ribs up and pulling them outward, which in turn enlarges the lungs. As the lungs expand, the pressure inside them is reduced, and they suck in air. During extreme inhalation, the neck muscles also contract. During inhalation, the diaphragm contracts and pushes downward; during exhalation, it relaxes and is pushed up into a dome shape by the lower digestive organs, compressing the lungs. As pressure rises in the chest cavity, exhale occurs, pressure is equalized and the cycle restarts.
Image by TheVisualMD
Thorax with Muscle Involved in Respiration
3D visualization of an inferior view of the muscles involved in respiration. The primary job of the thorax is to promote movements necessary for breathing. Three muscles of the thorax assist in this function; the external intercostals, internal intercostals and diaphragm. The intercostals do the job of lifting the ribs up and pulling them outward, which in turn enlarges the lungs. As the lungs expand, the pressure inside them is reduced, and they suck in air. During extreme inhalation, the neck muscles also contract. During inhalation, the diaphragm contracts and pushes downward; during exhalation, it relaxes and is pushed up into a dome shape by the lower digestive organs, compressing the lungs. As pressure rises in the chest cavity, exhalation occurs, pressure is equalized and the cycle restarts.
Image by TheVisualMD
Thorax with visible Lung and Heart
3D visualization of a posterior view of the lungs and heart reconstructed from scanned human data. De-oxygenated red blood cells are sent by the right side of the heart through the pulmonary artery into the vessels of the lungs to be refilled with oxygen for their next circuit through the body. The blood is carried through the lung tissues, where it exchanges its carbon dioxide for oxygen in the alveoli. It is then returned through the pulmonary veins to the left side of the heart and sent out to the rest of the body. The pulmonary artery carries away the deoxygenated blood, which returns fully oxygenated through the pulmonary vein.
Image by TheVisualMD
Female Thorax Showing Breast
Visualization based on scanned human data of an anterior view of female breast.
Image by TheVisualMD
Male Thorax with Visible Heart
Visualization of male heart. The nerve supply of the heart is emphasized specifically the cardiac plexus. The plexus which rest around the base of the heart, mainly in the epicardium, is formed by cardiac branches from the vagus nerves and the sympathetic trunks and ganglia.
Image by TheVisualMD
Thorax with Heart and Lung
3D visualization of an anterior view of the lungs and heart reconstructed from scanned human data. The cone-shaped lungs occupy most of the thoracic cavity. Each lung is suspended in its own pleural cavity and connected to the mediastinum (which houses the heart) by its root which is made up of vascular and bronchial attachments. The anterior, lateral and posterior surfaces of the lung are in close contact with the ribs and form a continuously curving surface called the costal surface. De-oxygenated red blood cells are sent by the right side of the heart through the pulmonary artery into the vessels of the lungs to be refilled with oxygen for their next circuit through the body. The blood is carried through the lung tissues, where it exchanges its carbon dioxide for oxygen in the alveoli. It is then returned through the pulmonary veins to the left side of the heart and sent out to the rest of the body. The pulmonary artery carries away the deoxygenated blood, which returns fully oxygenated through the pulmonary vein.
Image by TheVisualMD
Cross Section of Human Thorax. Liver in bottom Left
Cross Section of Human Thorax. Liver in bottom Left
Image by TheVisualMD
Male Thorax Showing Trachea and Lung
3D visualization of an anterior view of the lungs and heart reconstructed from scanned human data. De-oxygenated red blood cells are sent by the right side of the heart through the pulmonary artery into the vessels of the lungs to be refilled with oxygen for their next circuit through the body. The blood is carried through the lung tissues, where it exchanges its carbon dioxide for oxygen in the alveoli. It is then returned through the pulmonary veins to the left side of the heart and sent out to the rest of the body. The pulmonary artery carries away the deoxygenated blood, which returns fully oxygenated through the pulmonary vein.
Image by TheVisualMD
Thoracic Aneurysm in the Aorta
Aneurysms that occur in the part of the aorta that is higher in the chest are called thoracic aortic aneurysms. Aortic aneurysms often grow slowly and usually without any symptoms therefore making them difficult to detect
Image by TheVisualMD
Ventilation/perfusion scan
subFusion processing applied to a SPECT lung ventilation-perfusion scan.
Image by KieranMaher at English Wikibooks
Bronchi and Bronchiole of Lung
3D visualization of an inferior view of a transverse section of the thorax, highlighting the lungs, reconstructed from scanned human data. The trachea, cardiac impression, and transverse sections of the thoracic aorta and esophagus are clearly illustrated. The bronchial tree is also visible. When air is inhaled into the lungs, it flows through large tubes called bronchi, branches into smaller tubes known as bronchioles, and ends up in the thousands of small pouches that are the alveoli. This is where the oxygen is transferred from the air into the bloodstream. Each alveolar sac, or air sac, is surrounded by a bed of capillaries, and the walls between the lung and the capillary are extremely thin. The walls are so delicate, in fact, that the inhaled oxygen can seep from the air sacs to bind to the hemoglobin in the blood, while the carbon dioxide and other waste gasses leave the blood and diffuse into the lungs where they can be exhaled.
Image by TheVisualMD
Chest Pain
Angina
Image by TheVisualMD
Chest Pain
Chest Pain
Image by TheVisualMD
Chest Pain or Tightness
Image by TheVisualMD
CT scanner
A view of the CT scanner in the new Fort Belvoir Community Hospital. The hospital, still under construction, is a 2005 Base Realignment and Closure project, and is scheduled to open later this year.
Image by Official Navy Page from United States of America MC2 Todd Frantom/U.S. Marine Corps
Illustration of 3 X-ray images and a patient entering a CT scanner
Radiation can be dangerous, but it can also save lives. When you’re faced with a medical test that uses radiation, don’t let fear get in your way. Learn about the risks and benefits, and know what questions to ask.
Image by NIH News in Health
Drawing of a computerized tomography scanner with a health care professional looking on a computer screen as a patient lies inside the scanner
CT scan.
Image by NIDDK Image Library
Advanced CT Scanning
An NIH Clinical Center study participant receives a scan in the Photon-Counting CT scanner.
Image by NIH Clinical Center
Sensitive content
This media may include sensitive content
CAT Scan
A computer-assisted tomographic (CAT) scanner, with a Caucasian female technician working at a screen and behind a glass wall. A patient is on a table and being tested by the CAT scanner. The lighting is very subdued. This new technology revolutionized detection of brain tumors.
Image by National Cancer Institute / Linda Bartlett (Photographer)
Virtual Colonoscopy Slice of CT Data
Virtual colonoscopy is a new imaging technology that uses computed tomography (CT) images to look for polyps and cancer in the colon. A computed tomography scanner takes cross-sectional images of the patient's colon, after the colon has been inflated with gas. A three-dimensional model is created from the CT slices and evaluated by a radiologist for abnormalities.
Image by TheVisualMD
Pleural empyema
Amit Banga, GC Khilnani, SK Sharma1, AB Dey, Naveet Wig and Namrata Banga
How Are Pleurisy and Other Pleural Disorders Diagnosed?
Robertolyra
How Are Pleurisy and Other Pleural Disorders Treated?
en:User:Clinical Cases
Chest Radiograph
TheVisualMD
What To Expect During a Coronary Calcium Scan
Semnic
Incision for Open-Chest Bypass Surgery
TheVisualMD
4:22
A child's guide to hospital: CT Chest
The Royal Children's Hospital Melbourne/YouTube
1:50
What is it like to have a CT scan? | Cancer Research UK
Cancer Research UK/YouTube
Coronary CT angiography of coronary arteries
Oxford Academic Cardiovascular CT Core Lab and Lab of Inflammation and Cardiometabolic Diseases at NHLBI
Coronary CT
Bác sĩ Nguyễn Minh Đức
CT of the blood vessels and heart
Bác sĩ Nguyễn Minh Đức
Chest CT showing pulmonary sequestration
RadsWiki
Scimitar syndrome chest CT
Matthew Cham, MD
/Wikimedia
4:59
Having a Cardiac CT Scan in Hospital
Oxford AHSN/YouTube
2:33
What to Expect from a CT Exam with Contrast
RAYUS Radiology™/YouTube
7:48
Protocoling chest CTs
Thoracic Radiology/YouTube
1:44
Low Dose CT Scans to Look for Lung Cancer
Lee Health/YouTube
8:27
Lung Cancer Screening (LCS)
Cleveland Clinic/YouTube
5:10
CT Scan of the Chest Explained Clearly - High Resolution CT Scan (HRCT)
MedCram - Medical Lectures Explained CLEARLY/YouTube
3:29
What to Expect: CT Scan | Cedars-Sinai
Cedars-Sinai/YouTube
17:21
How I Read a Chest CT
Thoracic Radiology/YouTube
8:46
Introduction to Computed Tomographic imaging of the Chest
Yale Radiology and Biomedical Imaging/YouTube
3:09
Lung Cancer Screening: The Life-saving CT Scan
RAYUS Radiology™/YouTube
2:19
How to prepare for a CT scan
Sunnybrook Hospital/YouTube
2:07
Using CT Scans to Screen for Lung Cancer
UConn Health/YouTube
5:04
Cardiac CT scan
UHP_NHS/YouTube
6:28
Real look at Chest, Abdomen and Pelvis CT Scan from Start to Finish.
Dumb Old Dad/YouTube
2:52
What is it like to get a CT Scan with Contrast?
STRIDE Project/YouTube
Thorax with Healthy Heart
TheVisualMD
Heart and Lungs
TheVisualMD
Thorax with Muscle Involved in Respiration
TheVisualMD
Thorax with Muscle Involved in Respiration
TheVisualMD
Thorax with visible Lung and Heart
TheVisualMD
Female Thorax Showing Breast
TheVisualMD
Male Thorax with Visible Heart
TheVisualMD
Thorax with Heart and Lung
TheVisualMD
Cross Section of Human Thorax. Liver in bottom Left
TheVisualMD
Male Thorax Showing Trachea and Lung
TheVisualMD
Thoracic Aneurysm in the Aorta
TheVisualMD
Ventilation/perfusion scan
KieranMaher at English Wikibooks
Bronchi and Bronchiole of Lung
TheVisualMD
Chest Pain
TheVisualMD
Chest Pain
TheVisualMD
Chest Pain or Tightness
TheVisualMD
CT scanner
Official Navy Page from United States of America MC2 Todd Frantom/U.S. Marine Corps
Illustration of 3 X-ray images and a patient entering a CT scanner
NIH News in Health
Drawing of a computerized tomography scanner with a health care professional looking on a computer screen as a patient lies inside the scanner
NIDDK Image Library
Advanced CT Scanning
NIH Clinical Center
Sensitive content
This media may include sensitive content
CAT Scan
National Cancer Institute / Linda Bartlett (Photographer)
Virtual Colonoscopy Slice of CT Data
TheVisualMD
Treatment
Oxygen mask
Image by James Heilman, MD
Oxygen mask
A non rebreather
Image by James Heilman, MD
How Is a Pneumothorax Treated?
Treatment for your pneumothorax will be guided by:
your symptoms
the type of pneumothorax
the size of the pneumothorax
Observation
If you have a primary spontaneous pneumothorax and only minor symptoms, your pneumothorax might clear up on its own. Symptoms usually get better within 1-2 days without specific treatment.
Your doctor may recommend:
observation in hospital
oxygen (if needed)
pain relievers
You might need to have a repeat chest x-ray after a couple of weeks.
Tension pneumothorax is very rare in people with a primary spontaneous pneumothorax.
Removal of trapped air
You may need to have the trapped air removed from the pleural space if you have:
ongoing symptoms
an underlying lung condition
‘Catheter aspiration’ involves inserting a thin tube into your chest wall. Local anaesthetic is used to numb your skin beforehand.
Treatment involves inserting a thin tube into the chest wall. A large syringe is attached to the thin tube and sucks out air until the pneumothorax has gone.
Catheter aspiration treatment involves inserting a thin tube into the chest wall. A syringe is used to suck air out of the pleural space.
A syringe is attached to the tube. The syringe sucks the air out from inside the chest wall.
Some people need a chest tube to release the air from the pleural space.
Source: Healthdirect Australia
Prevention
Person with toy airplane on world map
Image by Andrea Piacquadio/Pexels
Person with toy airplane on world map
Image by Andrea Piacquadio/Pexels
Can a Pneumothorax Be Prevented?
If you’ve had a spontaneous pneumothorax, you’re at increased risk of having another one.
Changes in air pressure can cause a repeat pneumothorax. Talk to your doctor before:
travelling by airplane
travelling to high altitudes
If you’ve had a pneumothorax, your doctor will likely recommend against underwater diving.
Treatments to prevent pneumothorax
Quitting smoking can reduce your risk of having another pneumothorax.
Some people will need a procedure called a pleurodesis to prevent recurrence of pneumothorax. Pleurodesis aims to stick your lung to your chest wall.
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Pneumothorax
Pneumothorax occurs when air or other gas builds up in the pleural space and may cause part or all of the lung to collapse. There are different types of pneumothorax: spontaneous, tension, and traumatic. Learn the symptoms, causes, and treatment.