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PA Chest

Air does not absorb X-ray beams, so areas filled with air, such as the lungs and bronchial tree, appear dark on a CXR. Notice that there are white "streaks" in the lungs, especially near the hilum. These streaks are formed by the branches of the bronchial tree and pulmonary vessels. Notice that in a normal chest film, the right hemidiaphragm is slightly higher than the left hemidiaphragm.

Identify the following:

1. trachea

2. right lung

3. left lung

4. right hemidiaphragm

5. left hemidiaphragm


What do you think this is?