Abstract
Anorectal malignant melanoma (ARMM) is an extremely rare tumor with aggressive biological behavior. It is associated with a very poor prognosis and a 5-year survival rate of less than 10 %. There have therefore been a few reports of patients demonstrating long-term survival. We herein report a valuable case of long-term survival of a patient with ARMM with wide extension into the rectal mucosa, without endoscopic abnormalities.
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Umezaki, N., Ishimoto, T., Koba, I. et al. Anorectal malignant melanoma with extensive intraepithelial extension: report of a case. Int Canc Conf J 4, 245–248 (2015). https://doi.org/10.1007/s13691-015-0211-0
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DOI: https://doi.org/10.1007/s13691-015-0211-0