Journal of Yeungnam Medical Science

Case Report

Black Pigmentation of Terminal Ileum after Long Term Ingestion of Charcoal: Jun Young Lee, Sung Bum Kim, Sang Hoon Lee, Hee Jung Moon, Jae Won Choi, Jong Ryul Eun, Byung Ik Jang, Tae Nyeun Kim, Joon Hyuk Choi; Yeungnam Univ J Med. 2007;24(2 Suppl):S623-626. Published online December 31, 2007; DOI: https://doi.org/10.12701/yujm.2007.24.2S.S623

Abstract PDF: Isolated pigmentation of the terminal ileum is rare incidental finding when performing a colonoscopic examination. The common substances that cause gastrointestinal pigmentations are lipofuscin, iron sulphide(FeS), hemosiderin, and other exogenous materials such as silicates and titanium. In most cases, pigmentation of the terminal ileum has no subjective symptoms, so it is found in autopsy or incidental colonoscopic examination. The cause of pigmentation has not been clearly identified. We experienced a case of pigmentation of terminal ileum associated with long term charcoal ingestion. This finding supports that the source of ileal pigmentation is ingested material.

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