| Health / Medical Topics |
Anal Sinus
Furrows, with pouchlike recesses at the lower end, separating the rectal columns. (NCI Thesaurus)
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A malignant mesenchymal neoplasm arising from the anus. Representative examples include leiomyosarcoma, rhabdomyosarcoma, and Kaposi sarcoma.
A malignant mesenchymal tumor with skeletal muscle differentiation affecting the anus.
The area that includes the anus and the perianal skin.
A non-neoplastic or neoplastic polypoid lesion that arises from the anus. Representative examples include the fibroepithelial polyp and squamous papilloma. …
A benign neoplasm arising from the perianal sweat glands. It presents as a cystic nodular lesion and is characterized by the presence…
A procedure in which cells are scraped from the lining of the anus (the opening of the rectum to the outside of…
