Polyp

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Colonic tubulovillous polyp

Polypectomy

Polyp is a local prominence (arching) of the mucous membrane. It is a morphological unit describing the appearance, not the histological structure.

By shape

1. sedentary;
2. stalked.

According to histological nature

1. tumorous (polyposis Adenomas, polyposis lipom);
2. non-cancerous (Pseudotumorous);
   • inflammatory – non-specific granulation tissue, ulcerated on the surface and re-epithelialized (in the GIT);
   • fibrovascular – proliferation of the submucosa (nasal, cervical polyp);
   • hyperplastic - proliferation of the mucous membrane with partially preserved glandular structures (gastric and intestinal polyps in chronic inflammations-Ulcerative colitis, etc.).

Links

related articles

• Pseudotumors
• Precancers
• Lynch syndrome
• Colon polyps
• Endometrial polyp
• Tumors of the stomach
• Familial adenomatous polyposis

Source

• PASTOR, Jan. Langenbeck's medical web page [online]. ©2006. [cit. 2009-01-18]. <https://langenbeck.webs.com/>.