title: Melanoses of the gastrointestinal tract.
abstract: Electronmicroscopy and electron probe energy dispersive X-ray analysis studies have substantially contributed to our understanding of the various gastrointestinal tract melanoses. The nature of the pigment granules which occur in the various melanoses is discussed; their pattern of distribution in melanosis coli, melanosis ilei, melanosis duodeni and melanosis oesophagi is summarized and current knowledge of the aetiology and pathogenesis of these conditions is reviewed. Brief mention is also made of other examples of lipofuscin pigmentation, and a case of haemosiderosis ilei is described.
authors: Canadian Reference Centre for Cancer Pathology, Ottawa Civic Hospital, Ontario, Canada.
authors: F N
authors: FN
authors: Ghadially
authors: V M
authors: VM
authors: Walley
mesh_terms: D005767:Gastrointestinal Diseases / Q000473:pathology*; D006801:Humans; D008062:Lipofuscin / Q000032:analysis; D008544:Melanocytes / Q000648:ultrastructure; D008548:Melanosis / Q000473:pathology*; D008854:Microscopy, Electron
chemical_list: D008062:Lipofuscin