AMELANOTIC MELANOMA OF THE ANAL CANAL

Melanoma of the anal canal is a rare tumour that can present as a mass, pain or bleeding and/or can be amelanotic and identified by hpe examination.It is an aggressive malignancy with unfavorable prognosis and a poor overall survival. Anal canal is the most frequent site of melanoma after the skin and retina. It constitutes 1% of anorectal malignancies out of which 25- 30% are amelanotic. It was first described by Moore in 1857.