Melanoma of the Oral Cavity: About Two Cases and Review of Literature 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 Pigmented lesions vulva Pigmented Lesions of the Oral Cavity Oral and Maxillofacial Surgery Clinics a Melanotic macule at the wetdry line of the lower lip. b Melanotic Download Scientific Diagram Pathology Outlines Mucosal melanoma (genital, oral, sinonasal)