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 Weak Spot of Metastatic Melanoma Cells Identified Inside Precision Medicine Malignant Melanoma Clinical Pathology Flashcards ditki medical and biological sciences Late onset metastatic melanoma arising from a medium sized congenital melanocytic naevus Indian Journal of Dermatology, Venereology and Leprology Surgical Treatment of Peripheral Neuropathic Pain, Peripheral Nerve Tumors, and Peripheral Nerve Injury Frontiers Research Topic