Clin Colon Rectal Surg 2002; 15(4): 271-276
DOI: 10.1055/s-2002-36509
Copyright © 2002 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA. Tel.: +1(212) 584-4662

Anal and Peri-Anal Melanoma

Matthew G. Mutch1,2 , Patricia L. Roberts1,3
  • 1Department of Colon and Rectal Surgery, Lahey Clinic, Burlington, Massachusetts
  • 2Washington University, St. Louis, Missouri
  • 3Tufts University School of Medicine, Boston, Massachusetts
Further Information

Publication History

Publication Date:
07 January 2003 (online)

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ABSTRACT

Primary anorectal malignant melanoma is a rare entity comprising approximately 1% of all malignant tumors in the region. It is the third most common site of primary melanoma after the skin and retina. For every one case of anal melanoma, there are 8 squamous cell carcinomas of the perianal skin and anal canal and 250 adenocarcinomas of the rectum. The prognosis for anorectal melanoma is dismal with few 5-year survivors. The poor prognosis is due to the advanced stage of the disease at the time of diagnosis.