Anus and perianal area
Basal cell carcinoma

Author: Raul Gonzalez, M.D. (see Authors page)

Revised: 11 October 2017, last major update November 2014

Copyright: (c) 2002-2017,, Inc.

PubMed Search: Basal cell carcinoma [title] anus

Cite this page: Gonzalez, R. Basal cell carcinoma. website. Accessed June 22nd, 2018.
Definition / general
  • Anus
  • Appears to behave similarly to basal cell carcinoma at other locations
Clinical features
  • Biopsy
Case reports
  • Wide local excision with negative margins
Clinical images

Images hosted on other servers:

Perianal basal cell carcinoma

Lesion after biopsy

Gross description
  • Indurated, ulcerated lesion with irregular borders
Microscopic (histologic) description
  • Resembles basal cell carcinoma at other sites (see Skin nonmelanocytic chapter)
  • Retraction artifact helps distinguish from basaloid squamous cell carcinoma
Microscopic (histologic) images

Images hosted on other servers:

Cell clusters

Arising from basal layer of epidermis

Positive stains
Negative stains
Flow cytometry description
Differential diagnosis