Chest X-ray

How the Test is Performed:
The test is performed in a hospital radiology department or in the health care provider's office by an X-ray technician. Two views are usually taken: one in which the X-rays pass through the chest from the back (posterior-anterior view) and one in which the X-rays pass through the chest from one side to the other ( lateral view). You stand in front of the machine and must hold your breath when the X-ray is taken.

How to Prepare:
Inform the health care provider if you are pregnant . Chest X-rays are generally avoided during the 1st and 2nd trimesters of pregnancy . You must wear a hospital gown. You must remove all jewelry.

Infants and children:
The physical and psychological preparation you can provide for this or any test or procedure depends on your child's age, interests, previous experience, and level of trust. For specific information regarding how you can prepare your child, see the following topics as they correspond to your child's age:



How it Feels:
There is no discomfort. The film plate may feel cold.

Risks:
There is low radiation exposure. X-rays are monitored and regulated to provide the minimum amount of radiation exposure needed to produce the image. Most experts feel that the risk is very low compared with the benefits. Pregnant women and children are more sensitive to the risks of the X-ray .

Why this Test is Performed:
A chest X-ray may be ordered when an person's symptoms include a persistent cough , coughing up blood , chest pain , a chest injury, or difficulty in breathing. The test is also used when tuberculosis , lung cancer , or other chest or lung disease is suspected.

A serial chest X-ray (repeated or sequential) may be used to evaluate changes over time if an abnormality found on a chest X-ray (for example, an increase in the size of an abnormality over a period of weeks).

Normal Values:
The X-ray will show normal structures for the age of the patient.

Abnormal Results:
In the lungs:

In the heart:

  • size and shape of the heart determined
  • position and shape of the large arteries

In the bones:

Additional conditions under which the test may be performed:



Cost:
The estimated cost is $50 to $80. The cost of a serial chest X-ray is $110.
$110 Serial chest x-ray

Special Considerations:
There is a general agreement that routine chest X-rays should not be done on healthy people for screening purposes. There is little benefit of a chest X-ray in screening smokers who have no symptoms.


Aortic rupture (a tear in the aorta, which is the major artery coming from the heart) can be seen on a chest X-ray. In this case, it was caused by a traumatic perforation of the thoracic aorta. This is how the X-ray appears when the chest is full of blood (right-sided hemothorax) seen here as cloudiness on the left side of the picture.




A CXR in a patient with central cancer of the right lung. Notice the white mass in the middle portion of the right lung (seen on the left side of the picture).




This chest X-ray shows adenocarcinoma of the lung. There is a rounded light spot in the right upper lung (left side of the picture) at the level of the second rib. The light spot has irregular and poorly defined borders and is not uniform in density. Diseases that may cause this type of X-ray result would be tuberculous or fungal granuloma, and malignant or benign tumors.




This chest X-ray shows coal worker's lungs. There are diffuse, small, light areas on both sides (1 to 3 mm) in all parts of the lungs. Diseases that may result in an X-ray like this include: simple coal workers pneumoconiosis (CWP) - stage I, simple silicosis, miliary tuberculosis, histiocytosis X (eosinophilic granuloma), and other diffuse infiltrate pulmonary diseases.




This chest X-ray shows the affects of the fungal infection, coccidioidomycosis. In the middle of the left lung (seen on the right side of the picture) there are multiple, thin-walled cavities (seen as light areas) with a diameter of 2 to 4 centimeters. To the side of these light areas are patchy light areas with irregular and poorly defined borders. Diseases that may explain these X-ray findings include lung abscesses, chronic pulmonary coccidioidomycosis, chronic pulmonary tuberculosis, chronic pulmonary histoplasmosis, and others.




This chest X-ray shows coal workers pneumoconiosis - stage II. There are diffuse, small (2 to 4 mm) light areas on both sides of the lungs. Diseases which may explain these X-ray findings include simple coal workers pneumoconiosis (CWP) - stage II, simple silicosis, disseminated tuberculosis, metastatic lung cancer, and other diffuse infiltrative pulmonary diseases.




This chest X-ray shows coal workers pneumoconiosis - stage II. There are diffuse, small (2 to 4 mm each), light areas throughout both lungs. In the right upper lung (seen on the left side of the picture), there is a light area (measuring approximately 2 cm by 4 cm) with poorly defined borders, representing coalescence (merging together) of previously distinct light areas. Diseases which may explain these X-ray findings include simple coal workers pneumoconiosis (CWP) - stage II, silico-tuberculosis, disseminated tuberculosis, metastatic lung cancer, and other diffuse infiltrative pulmonary diseases.




This picture shows complicated coal workers pneumoconiosis. There are diffuse, small, light areas (3 to 5 mm) in all areas on both sides of the lungs. There are large light areas which run together with poorly defined borders in the upper areas on both sides of the lungs. Diseases which may explain these X-ray findings include complicated coal workers pneumoconiosis (CWP), silico-tuberculosis, disseminated tuberculosis, metastatic lung cancer, and other diffuse infiltrative pulmonary diseases.




This picture shows complicated coal workers pneumoconiosis. There are diffuse, massive light areas that run together in the upper and middle parts of both lungs. These are superimposed on a background of small and poorly distinguishable light areas that are diffuse and located in both lungs. Diseases which may explain these X-ray findings include, but are not limited to: complicated coal workers pneumoconiosis (CWP), silico-tuberculosis, and metastatic lung cancer.




Tuberculosis is an infectious disease that causes inflammation, the formation of tubercules and other growths within tissue, and can cause tissue death. These chest X-rays show advanced pulmonary tuberculosis. There are multiple light areas (opacities) of varying size that run together (coalesce). Arrows indicate the location of cavities within these light areas. The X-ray on the left clearly shows that the opacities are located in the upper area of the lungs toward the back. The appearance is typical for chronic pulmonary tuberculosis but may also occur with chronic pulmonary histiocytosis and chronic pulmonary coccidioidomycosis. Pulmonary tuberculosis is making a comeback with new resistant strains that are difficult to treat. Pulmonary tuberculosis is the most common form of the disease, but other organs can be infected.




This X-ray shows a single lesion (pulmonary nodule) in the upper right lung (seen as a light area on the left side of the picture). The nodule has distinct borders (well-defined) and is uniform in density. Tuberculosis (TB) and other diseases can cause this type of lesion.




Sarcoid causes damage to the lung tissue that heals by scarring. The film shows a diffuse milky and granular appearance in the normally dark lung areas. This individual has marked decrease in lung function.



This film shows advanced sarcoid, scarring of the lungs (the light streaking), and cavity formation (the dark areas in the upper right side of the picture).




This individual has a mass in the upper part of the lung. Although the cause of the mass can be suspected, based on this person's history, there are many diseases that can produce lung lesions.




This is a chest X-ray of a person with bronchial cancer. This is a front view, where the lungs are the two dark areas and the heart and other structures are white areas visible in the middle of the chest. The light areas that appear as subtle branches extending from the center into the lungs, are cancerous.




This is a chest X-ray (CXR) of a nodule in the right lung.




This picture is a chest X-ray of a person with a lung mass. This is a front view, where the lungs are the two dark areas and the heart and other structures are visible in the middle of the chest. The X-ray shows a mass in the right upper lung, indicated with the arrow (seen on the left side of the picture).




This is a chest X-ray showing mass in the right lower lung near heart (seen on the left side of the picture).