Melanosis Coli El Atlas Gastrointestinal gastrointestinalatlas.com Circulating Genotypes of Hepatitis C Virus in Italian Patients before and after the Application of Wider Access Criteria to HCV Treatment Melanosis coli** Melanosis coli is a benign, reversible condition characterized by brown black pigmentation of the colonic mucosa, most often due to chronic use of anthraquinone laxatives. The discoloration is caused Diagnosis, management, and treatment of hepatitis C Strader 2004 Hepatology Wiley Online Library Brilliant Colonic Adenoma in Melanosis Coli Indian Journal of Surgery Springer Nature Link