Primitive Anorectal Malignant Melanoma: A Rare But Aggressive Tumor

Abstract

We report 2 observations of primary anorectal melanoma, collected over a period of 2 years from December 2017 to December 2019, as well as data from the literature. The patients nevertheless benefited after the histological evidence with an additional immunohistochemical study of an extension assessment made by pelvic MRI and thoracoabdominopelvic CT scan. The patients were classified stage I according to the Slingluff classification. They underwent abdominoperineal resection with definitive left iliac colostomy and adjuvant Chemotherapy.