Pathology Outlines Melanosis coli Classification of HES diagnoses using ICD 10 Download Scientific Diagram Melanosis coli: Symptoms, causes, treatment, and more 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 Melanosis Coli Clinical Gastroenterology and Hepatology