by Tim Milligan | Nov 12, 2015 | Normal
This is a normal lateral film of a female patient. Note the spine (sp), anterior costophrenic angle (acpa), gastric air bubble (gab), trachea (tr), left mainstem bronchus (lbr), right mainstem bronchus (rbr), aortic arch (ao), anterior/retrosternal (acs) and...
by Tim Milligan | Nov 12, 2015 | Normal
On a film taken in full inspiration, the right hemidiaphragm should project over the 6th anterior interspace or 10th rib posteriorly. Films taken without a full inspiration are described as having a “poor inspiratory result”. This may result from a poor inspiratory...
by Tim Milligan | Nov 12, 2015 | Musculoskeletal
Hypertrophic First Rib Rib hypertrophy, often at the costochondral junction and particularly involving the first rib, commonly mimics a lung nodule on the PA projection. It has been called “the medical student’s tumor.” Clues that the “nodule” is in fact due to rib...
by Tim Milligan | Nov 12, 2015 | Mediastinum
This patient has a well circumscribed mass in the posterior mediastinum. The valve of the lateral view is well depicted in this case; on the frontal radiograph there is no way to localize the lesion. The differential diagnosis for a posterior mediastinal mass...
by Tim Milligan | Nov 12, 2015 | Mediastinum
This patient has a large mass in the middle mediastinum. The differential diagnosis for such a mass includes: lymphoma or other lymphadenopathy lung cancer aortic aneurysm or other vascular abnormality abscess hematoma esophageal carcinoma, esophageal duplication cyst...
by Tim Milligan | Nov 12, 2015 | Mediastinum
PA and lateral chest radiographs of a hiatal hernia. Left: PA chest view demonstrates a retrocardiac lucency with well defined lateral margins. Right: Lateral radiograph shows a large hiatal hernia in the middle mediastinum. Hiatal hernia is the most common...
