Mucocutaneous Pigmented Lesions, Nevi and Melanoma (Chapter 4) Pediatric Head and Neck Pathology Pathology Outlines Pigmented epithelioid melanocytoma Pigmented Lesions of the Oral Cavity Oral and Maxillofacial Surgery Clinics Pathology Outlines Pigmented epithelioid melanocytoma 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 Pathology Outlines Nevi general