Apple Core Appearance

A pattern of luminal constriction caused by mucosal erosion and stenosis with ‘shouldering’ of the margins, corresponding to an exophytic encircling and constricting mass in the large intestine lumen
Aetiology Large adenocarcinoma, especially in the left colon, which may obstruct the faecal flow, resulting in pencil-thin stools. The lesion may be partially mimicked by concentric amebomas in Entamoeba histolytica granulomas, by exuberant submucosal fibrosis in Crohn’s disease, by stenosing fibrotic stages of diverticulosis coli, and may occur in small intestinal adenocarcinoma

单词	apple core appearance
释义	Apple Core Appearance A pattern of luminal constriction caused by mucosal erosion and stenosis with ‘shouldering’ of the margins, corresponding to an exophytic encircling and constricting mass in the large intestine lumen Aetiology Large adenocarcinoma, especially in the left colon, which may obstruct the faecal flow, resulting in pencil-thin stools. The lesion may be partially mimicked by concentric amebomas in Entamoeba histolytica granulomas, by exuberant submucosal fibrosis in Crohn’s disease, by stenosing fibrotic stages of diverticulosis coli, and may occur in small intestinal adenocarcinoma
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