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Melanosis coli is dark brown black pigmentation of colorectal mucosa associated with chronic use of laxatives containing anthraquinone. Examples of such laxatives include senna and rhubarb derivatives. Clinical Importance: There is no association Oral melanotic macula on the upper gingival mucosa on a 40 year old Download Scientific Diagram Melanotic Oncocytic Metaplasia of the Nasopharynx: A Report of Three Cases and Review of the Literature Melanosis Coli El Atlas Gastrointestinal Benign Discoloration Poses Questions
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