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colorectal polyps

Monday 15 March 2004

colorectal polyps, colonic polyp

Definition: Broadly speaking, the word "polyp" simply denotes any mucosal elevation. Polyps may consist of benign or malignant epithelial proliferations, inflammatory infiltrates localized in the lamina propria, or deeper, submucosalor intramural mesenchymal proliferations, malformations, or even metastatic tumors.

The three most common colorectal polyps are inflammatory, hyperplastic, and adenomatous.

Classification

- colorectal epithelial polyps

  • colorectal adenomas
    • colonic tubular adenoma
    • colonic villous adenoma
  • colorectal hyperplastic polyp
  • colorectal juvenile polyp
  • colorectal Peutz-Jeghers polyp
  • colorectal mixed hyperplastic adenomatous polyp

- colorectal non-epithelial polyps

Images

- endometrial stromal sarcoma ESS metastatic to colon

See also

- colorectal lesions
- colorectal tumors

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