Labial Lentigo (labial melanotic macule) Cancer Therapy Advisor Pathology Outlines Acral melanoma Lentigo simplex Libre Pathology Pathology Outlines Common acquired nevus Pathology Outlines Melanotic macule 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