Small intestine cancer classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Parminder Dhingra, M.D. [2]

Overview

Small intestine cancer may be classified into adenocarcinoma, gastrointestinal stromal tumor, lymphoma, ileal carcinoid tumor, and sarcoma (most commonly leiomyosarcoma and rarely angiosarcoma or liposarcoma)

Classification

Small intestine cancer can be subdivided into:

• Duodenal cancer (the first part of the small intestine)
• Cancer of the jejunum and ileum (the later two parts of the small intestine)

Several different subtypes of small intestine cancer exist. These include:

• Adenocarcinoma
• Gastrointestinal stromal tumor
• Lymphoma
• Ileal carcinoid tumor
• Sarcoma (most commonly leiomyosarcoma and rarely angiosarcoma or liposarcoma)