A right pneumothorax on upright view A right pneumothorax on upright view

Findings: Pneumothorax: air within the pleural space Typically located in a non-dependent location Primary Sign: white...

Bilateral subcutaneous emphysema Bilateral subcutaneous emphysema

Findings: Air is lucent (jet black) on plain film. There is streaky air in the subcutaneous tissue bilaterally.

Boerhaave's Syndrome on CXR and BaSw Boerhaave's Syndrome on CXR and BaSw

Findings: The CXR shows aberrant air secondary to the perforated esophagus; subcutaneous emphysema and pneumomediastinum....

Bowel Ischemia with Pneumatosis Coli and Portal Venous Gas on CT scans Bowel Ischemia with Pneumatosis Coli and Portal Venous Gas on CT scans

Findings: The contrast enhanced CTs show air in the bowel wall and portal venous system, which is classic for bowel ischemia...

Diverticulitis of the Sigmoid Colon with Colovesical Fistula on CT Scans Diverticulitis of the Sigmoid Colon with Colovesical Fistula on CT Scans

Findings: The sigmoid shows diverticula and is attached to the dome of the bladder. A fistulous tract is seen filled with...

Diverticulitis of the Sigmoid Colon with Extraluminal Air on CT Scan Diverticulitis of the Sigmoid Colon with Extraluminal Air on CT Scan

Findings: There are diverticula and thickening of the walls of the sigmoid colon with an adjacent extraluminal air pocket...

Diverticulitis: Pelvic Abscess with Fistulae Diverticulitis: Pelvic Abscess with Fistulae

Findings: There is a large gas containing pelvic abscess with adjacent tiny collections of air and contrast in fistulous...

Free Abdominal Air aka Pneumoperitoneum on CXR Free Abdominal Air aka Pneumoperitoneum on CXR

Findings: The CXR demonstrates crescentic lucent air collections below both hemidiaphragms. This is the classic appearance...

Gallstone Ileus on CT Scans Gallstone Ileus on CT Scans

Findings: This CT demonstrates the classic Rigler’s Triad of gallstone ileus: Pneumobilia (air in the biliary tract), low...

Hyoid Fracture with Abscess Complicating a Blow to the Neck on CT Scans Hyoid Fracture with Abscess Complicating a Blow to the Neck on CT Scans

Findings: The CT scans demonstrate a fractured hyoid bone, gas bubbles in an abscess producing mass effect, and narrowing of...

 
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