All of the following are true regarding Crohn disease except: March 2008: (A) Skip lesions, (B) Inflammation limited to mucosa, (C) Recurrence common after surgery, (D) Fistulae formation is seen
Answer is B. Ans. B: Inflammation limited to mucosaFeatures of Crohn disease:Bowel region: Ileum, colonDistribution: skip lesionStricture formation: YesWall appearance: thickInflammation: transmuralUlcers:deep, knife-likeLymphoid reaction: markedFibrosis: markedSerositis: markedGranuloma formation: Yes (35%)Fistula/sinuses: YesFat/vitamin malabsorption: YesRecurrence after surgery: CommonToxic megacolon: No