Pathology Outlines Pigmented epithelioid melanocytoma Pathology Outlines Invasive melanoma a Melanotic macule at the wetdry line of the lower lip. b Melanotic Download Scientific Diagram 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 Lentigo pathology Pathology Outlines Nevi general