Colorectal Carcinoma

Definition 1

A malignant epithelial neoplasm that arises from the colon or rectum and invades through the muscularis mucosa into the submucosa. The vast majority are adenocarcinomas. (NCI Thesaurus)

Definition 2

Cancer that develops in the colon (the longest part of the large intestine) and/or the rectum (the last several inches of the large intestine before the anus). (NCI Dictionary)

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Colorectal cancer which penetrates the visceral peritoneum.

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Colorectal cancer which directly invades other organs or structures.

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Colorectal cancer with invasion through the muscularis propria into the submucosa, or into non-peritonealized pericolic or perirectal soft tissues, with tumor extension…