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 is a condition where the inner lining of the colon turns dark brown or black, usually due to long term use of certain laxatives #doctorsdiary #askdoc #doctorsofinstagram APASL consensus statements and management algorithms for hepatitis C virus infection Hepatitis C reactivation in patients with chronic infection with genotypes 1b and 2c: a retrospective cohort study of 206 untreated patients Gut Experimental and Therapeutic Medicine