Imaging in Abdominal Surgery

Toxic Megacolon

KEY FACTS Terminology Acute transmural fulminant colitis with colonic dilation and systemic toxicity You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here

Ulcerative Colitis

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Neutropenic Enterocolitis (Typhlitis)

KEY FACTS Terminology Life-threatening, necrotizing enterocolitis occurring primarily in severely neutropenic patients Imaging Best imaging tool: CECT with multiplanar reformations Massive mural thickening of cecal ± ascending colon wall – Other segments of colon and small bowel can be affected…

Stercoral Colitis and Fecal Impaction

KEY FACTS Terminology Hardened and impacted mass of feces that cannot be passed and obstructs colonic lumen Stercoral ulceration Pressure necrosis of bowel lumen by fecal mass You’re Reading a Preview Become a Clinical Tree membership for Full access and…

Infectious Colitis

KEY FACTS Terminology Colonic inflammation due to bacterial, viral, fungal, or parasitic infections Imaging Best imaging tool: CECT with multiplanar reformations Mucosal hyperenhancement, marked submucosal edema, ascites Multiple air-fluid levels, inflamed pericolonic fat Ultrasound findings Symmetric wall thickening and submucosal…

Colon: Imaging Approach and Differential Diagnosis

Embryology and Congenital Malformations The ascending and transverse colon, along with the small intestine, are part of the embryologic midgut, which undergoes marked elongation beginning in the 6th week of fetal development. To accommodate this increased length, the midgut herniates…

Hamartomatous Polyposis Syndromes

KEY FACTS Terminology Spectrum of hereditary and nonhereditary polyposis syndromes characterized by gastrointestinal (GI) tract polyps and other associated lesions Imaging CT enterography is best imaging tool (multiplanar, contrast enhanced) Best diagnostic clue Cluster of small filling defects in small…