TITLE:
Rare Differential Diagnosis of Hemorrhoidal Disease: Primary Anorectal Melanoma; a Case Report and Review of the Literature
AUTHORS:
Willy Stéphane Kengne, Joseph Idriss Djoko, Gael Jacquemin, Julie Vandepapeliere, Lynn Gabrielle Alexis, Silva De Vulder-Cotrina, Adeline Donati, Marie-Cécile Nollevaux, Olivier Borgniet
KEYWORDS:
Anorectal Melanoma, Diagnosis, Treatment, Prognosis, Anatomopathology, Surgery
JOURNAL NAME:
Case Reports in Clinical Medicine,
Vol.14 No.2,
February
13,
2025
ABSTRACT: Anorectal melanoma is a rare tumor representing less than 1% of anorectal cancers and around 0.3% of malignant melanomas. Its prognosis is particularly poor due to the early occurrence of metastases. We report the case of a 65-year-old man presenting with rectorrhagia and anal pain, initially diagnosed as hemorrhoidal disease. Subsequent proctological examination revealed an ulcerating-bourging tumor, confirmed histologically as an anorectal melanoma. After a normal extension workup, an abdominoperineal amputation was performed. Anorectal melanoma is a pathology with a poor prognosis, requiring early diagnosis to improve chances of survival.