Can a black pigmented lesion of the oral cavity predict future development of melanoma Report of a case and review of literat Pathology Outlines Melanotic macule Extension Without Malignant Changes in Oral Melanotic Macule: A Report of Two Cases and Review of the Literature Differential Diagnosis of Pigmented Lesions in the Oral Mucosa: A Clinical Based Overview and Narrative Review 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