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]

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)