This atlas of chest imaging is a collection of interesting chest radiographs and computed tomograms of the chest. The readings of the films are meant to be illustrative of specific, major findings. The associated text is not intended as a comprehensive assessment of the images.
Normal chest radiograph—review of anatomy.1. Trachea. 2. Carina. 3. Right atrium. 4. Right hemidiaphragm. 5. Aortic knob. 6. Left hilum. 7. Left ventricle. 8. Left hemidiaphragm (with stomach bubble). 9. Retrosternal clear space. 10. Right ventricle. 11. Left hemidiaphragm (with stomach bubble). 12. Left upper lobe bronchus.
Normal chest tomogram—note anatomy. 1. Superior vena cava. 2. Trachea. 3. Aortic arch. 4. Ascending aorta. 5. Right mainstem bronchus. 6. Descending aorta. 7. Left mainstem bronchus. 8. Main pulmonary artery. 9. Heart. 10. Esophagus. 11. Pericardium. 12. Descending aorta.
CT scan demonstrating left upper lobe collapse. The patient was found to have an endobronchial lesion (not visible on theCT scan) resulting in this finding. The superior vena cava (black arrow) is partially opacified by intravenous contrast.
CT scan revealing chronic left lower lobe collapse. Note dramatic volume loss with minimal aeration. There is subtle mediastinal shift to the left.
Left upper lobe scarring with hilar retraction with less prominent scarring in right upper lobe as well. Findings consistent with previous tuberculosis infection in an immigrant from Ecuador.
Apical scarring, traction bronchiectasis (red arrow), and decreased lung volume consistent with previous tuberculosis infection. Findings most significant in left lung.
Chest x-ray (CXR) demonstrating right upper lobe collapse (yellow arrow). Note the volume loss as demonstrated by the elevated right hemidiaphragm as well as mediastinal shift to the right. Also apparent on the film are an endotracheal tube (red arrow) and a central venous catheter (black arrow).
Opacity in the right upper lobe. Note the volume loss as indicated by the elevation of the right hemidiaphragm, elevation of minor fissure (yellow arrow) and deviation of the trachea to the right (blue arrow).
CT scan of the same right upper lobe opacity. Note the air bronchograms and areas of consolidation.
Emphysema with increased lucency, flattened diaphragms (black arrows), increased AP diameter, and increased retrosternal clear space (red arrow).
CT scan of diffuse, bilateral emphysema.
CT scan of bullous emphysema.
Lymphangioleiomyomatosis—note multiple thin-walled parenchymal cysts.
Two cavities on posteroanterior (PA) and lateral CXR. Cavities and air-fluid levels identified by blue arrows. The smaller cavity is in the right lower lobe (located below the major fissure, identified with the yellow arrow) and the larger cavity is located in the right middle lobe which is located between the minor (blue arrow) and major fissures. There is an associated opacity surrounding the cavity in the right lower lobe.
CT scan of parenchymal cavity.
Thick-walled cavitary lung lesions. The mass in the right lung has thick walls and advanced cavitation, while the smaller nodule on the left has early cavitary changes (arrow). This patient was diagnosed with Nocardia infection.
Mild congestive heart failure. Note the Kerley B lines (black arrow) and perivascular cuffing (yellow arrow) as well as the pulmonary vascular congestion (red arrow).
Pulmonary edema. Note indistinct vasculature, perihilar opacities, and peripheral interstitial reticular opacities. While this is an anteroposterior film making cardiac size more difficult to assess, the cardiac silhouette still appears enlarged.
CXR demonstrates reticular nodular opacities bilaterally with small lung volumes consistent with usual interstitial pneumonitis (UIP) on pathology. Clinically, UIP is used interchangeably with idiopathic pulmonary fibrosis (IPF).
CT scan of usual interstitial pneumonitis (UIP), also known as idiopathic pulmonary fibrosis (IPF). Classic findings include traction bronchiectasis (black arrow) and honeycombing (red arrows). Note ...
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