A Case of Mucosa-Associated Lymphoid Tissue Lymphoma of the Sigmoid Colon Presenting as a Semipedunculated Polyp

被引：19

作者：

Kim, Myung Hwan ^{[1
]}

Jung, Jin Tae ^{[1
]}

Kim, Eui Jung ^{[1
]}

Kim, Tae Won ^{[1
]}

Kim, Seon Young ^{[1
]}

Kwon, Joong Goo ^{[1
]}

Kim, Eun Young ^{[1
]}

Sung, Woo Jung ^{[2
]}

机构：

[1] Catholic Univ Daegu, Sch Med, Dept Internal Med, Daegu, South Korea

[2] Catholic Univ Daegu, Sch Med, Dept Pathol, Daegu, South Korea

来源：

CLINICAL ENDOSCOPY | 2014年 / 47卷 / 02期

关键词：

Mucosa-associated lymphoid tissue lymphoma; Sigmoid colon; Colonic polyps;

D O I：

10.5946/ce.2014.47.2.192

中图分类号：

R57 [消化系及腹部疾病];

学科分类号：

摘要：

Mucosa-associated lymphoid tissue (MALT) lymphomas are characterized by lymphoepithelial lesions pathologically. Colonic MALT lymphomas are relatively rarer than lymphomas of the stomach or small intestine. Endoscopically, colonic MALT lymphoma frequently appears as a nonpedunculated protruding polypoid mass and/or an ulceration in the cecum and/or rectum. We report a unique case of a colonic MALT lymphoma presenting as a semipedunculated polyp. A 54-year-old man was found to have a 2-cm semipedunculated polyp in the sigmoid colon during screening colonoscopy. The polyp was removed by endoscopic mucosal resection. Histologic examination of the resected polyp revealed diffuse epithelial infiltration by discrete aggregates of lymphoma cells. We diagnosed the tumor as low-grade B-cell MALT lymphoma by immunohistochemical staining.

引用

页码：192 / 196

页数：5

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