#polypus__polyp  a small vascular growth on the surface of a mucous membrane
  supertype:  growth.illness  (pathology) an abnormal proliferation of tissue (as in a tumor)
  subtype:  adenomatous_polyp__adenomatouspolyp  a polyp that consists of benign neoplastic tissue derived from glandular epithelium; "adenomatous polyps are visible protrusions that can develop on the mucosal surface of the colon or rectum"
  subtype:  sessile_polyp__sessilepolyp  a relatively flat polyp
  subtype:  pedunculated_polyp  a polyp with a stalk or peduncle

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