Small intestine tumor

Small intestine tumors refer to tumors in the small intestine from the duodenum to the ileocecal valve. The small intestine accounts for 75% of the total length of the gastrointestinal tract, and its mucosal surface area accounts for more than 90% of the surface area of ​​the gastrointestinal tract. About 1% of gastrointestinal malignancies.

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