GI Radiology > Small Bowel > Disease Patterns > Focal

Focal Disease Patterns

Annular Lesions

Shouldered Margins

Primary adenocarcinoma
Carcinoid
Metastasis
Lymphoma
Crohn disease
Anastomotic stricture
NSAID enteritis

Tapered Margins

Crohn disease
Adhesion
Ischemic stricture (vascular, radiation, trauma)

Shouldered margins in adenocarcinoma. Note the "apple-core" appearance of the lesion.

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Tapered luminal narrowing in Crohn disease.