This is a very rare case of metastatic oral mucosal melanoma to the colon with an unusual presentation mimicking melanosis coli. The colonoscopy findings show no mass effect but multiple hyperpigmented lesions What is Metastatic Melanoma? Forefront Dermatology Late onset metastatic melanoma arising from a medium sized congenital melanocytic naevus Indian Journal of Dermatology, Venereology and Leprology Malignant Melanoma Clinical Pathology Flashcards ditki medical and biological sciences