3. These are PA and lateral films of RML pneumonia (arrows).
Note the indistinct borders, air bronchograms, and silhouetting of the right heart border.
24. A) Frontal chest radiograph and (B) axial CT image of an adult with an aspergilloma (open black
arrow) forming in an old tuberculosis cavity. Note the characteristic air crescent sign (white arrow).
25.
26. Note bilateral flattening of the diaphragms and significant
hyperinflation as demonstrated by visualization of 11 posterior ribs.
32. Note in these images
that the hilum can be
seen through the
mass. It is not a hilar
mass. The lateral shows
nothing abnormal
posteriorly.
The CT sections
demonstrate the
mass in the anterior
mediastinum (arrows)
at the
aortopulmonary
window which was a
thymoma.
40. Mass above the aortic arch can be seen to be posterior to the aorta on the lateral. It does not
silhouette out the superior margin of the aorta. A chest CT was performed to further evaluate
the mass. This CT scan shows that the mass is posterior to the aorta, smoothly marginated,
low density, and associated with the esophagus. It is an esophageal duplication cyst.
41.
42. The mass projects above the clavicles,
therefore it is not an anterior structure. MRI
shows the mass is extra pleural and associated
with the spinal nerves. It is a schwannoma, a
benign tumor of the nerve sheath.
43.
44. Lateral film of an intraparenchymal mass. Note acute margins like "A" in
the diagram on the right. Both "B" and "C" have obtuse margins. "B"
demonstrates a pleural mass while "C" is an extrapleural chest wall mass.
45.
46. PA and lateral of hiatal hernia. Can you see
the air-filled "mass" posterior to the heart?
47.
48. Silicosis Egg shell calcification of lymph nodes Other findings include:
Diaphragmatic pleural calcification Multiple cavities with fluid levels.
72. Left Ventricular Aneurysm. There is an unusual contour of the left heart border (white arrow)
and an abnormal protuberance in the region of the left ventricle (red arrow). Enhanced CT
scan at level of heart shows very large left ventricular aneurysm partially filled with clot
73.
74. The patient is rotated.
The radiograph is over penetrated.
The radiograph was performed
during expiration.
The radiograph is under penetrated.