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 A Rare Case of Aggressive Melanotic Schwannoma Occurred in Spinal Nerve of a 59 Year Old Male Malignant Melanoma Clinical Pathology Flashcards ditki medical and biological sciences Metastatic melanoma Metastatic Tumors (Chapter 22) Placental and Gestational Pathology