CASE 166

History: A 39-year-old man presents with left lower quadrant pain of 4 days’ duration.

1. What should be included in the differential diagnosis of the imaging finding shown in Figure A? (Choose all that apply.)

A. Diverticulitis

B. Colonic lipoma

C. Omental infarction

D. Epiploic appendagitis

E. Mesenteric panniculitis

2. What is the etiology of epiploic appendagitis?

A. Occlusion of the lumen of the appendage with debris

B. Bacterial contamination of the epiploic appendage

C. Torsion of the epiploic appendage

D. Localized perforation

3. The lesion of epiploic appendagitis is described as an oval pericolonic lesion surrounded by inflammatory stranding. What is the density of this oval lesion?

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