Patchy alveolar infiltrates, widely distributed multiple irregular masses plus or minus pleural effusion and plus or minus thick-walled canvities. [courtesy of Dr. M. Hutcheon]
In this patient, note the irregular, soft, fluffy opacification at the right heart border suggestive of a medial right lower lobe pulmonary contusion.
Ill-defined infiltrating lesion in left hilar region.
Cavitation in apical regions and posterior segments of upper lobe plus or minus calcification. [courtesy of Dr. M. Hutcheon]
In addition to the features of an uncomplicated pneumothorax, note the marked mediastinal shift to the left in this young patient with a right tension pneumothorax.
The patient’s left pneumothorax is more difficulty to diagnose on this supine film. This study demonstrates the “deep sulcus” sign, with the left costophrenic sulcus descending below the edge of the film. Other clues include a hyperlucent left...
This patient has a moderate-sized right pleural effusion. The lateral decubitus film places the effusion in the dependent position and will show layering unless the effusion is loculated. This is noted in the same patient’s left lateral decubitus film.
Normal PA film of a male. Note the right and left clavicles (cl), posterior (p1-4) and anterior (a1-2) ribs, right and left costophrenic angles(cpa), right cardiophrenic angles (cdpa), right and left hemidiaphragms (hd), gastric air bubble (gab), trachea (tr), right...
Normal PA film of a male. Note the right and left clavicles (cl), posterior (p1-4) and anterior (a1-2) ribs, right and left costophrenic angles(cpa), right cardiophrenic angles (cdpa), right and left hemidiaphragms (hd), gastric air bubble (gab), trachea (tr), right...
Because the AP projection positions the heart and mediastinum further from the x-ray film than the PA projection, these structures appear magnified with the AP view. Other clues that you are looking at an AP projection include clavicles that project above the lung...
