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Proctologic examination, colonoscopy, and biopsy can establish a correct diagnosis. Imaging techniques, especially MRI can show some characteristic features, but it is essentially performed for extension assessment. We report the case of a 63-year-old man who consulted for rectal bleeding. The proctological examination found a brownish ulcerative-vegetating tumor of 3 cm in diameter located 3 cm from the anal rim. The endoscopic examination revealed a predominance of ulcerative budding lesions and the biopsy specimen confirmed a rectal melanoma. The extension assessment, based on a computed tomography scan and MRI did not show locoregional or distant metastases. Radiotherapy and abdominoperineal resection with pelvic node dissection was the treatment of choice with good evolution. <\/jats:p>","DOI":"10.1177\/2050313x231194150","type":"journal-article","created":{"date-parts":[[2023,8,22]],"date-time":"2023-08-22T10:54:47Z","timestamp":1692701687000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["Primitive rectal melanoma: A rare case report"],"prefix":"10.1177","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6501-6888","authenticated-orcid":false,"given":"Ibtissam","family":"Elouali","sequence":"first","affiliation":[{"name":"Central Radiology Department, IBN SINA University Hospital V, Rabat, Morocco"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3710-2647","authenticated-orcid":false,"given":"Kawtar","family":"Imrani","sequence":"additional","affiliation":[{"name":"Central Radiology Department, 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