title: An unusual cause of lower gastrointestinal bleeding.
authors.affiliation: Department of Medicine, University of Florida College of Medicine-Jacksonville, Jacksonville, Florida.
authors.forename: Rahman
authors.initials: R
authors.lastname: Nakshabendi
authors.affiliation: Department of Medicine, University of Florida College of Medicine-Jacksonville, Jacksonville, Florida.
authors.forename: Andrew C
authors.initials: AC
authors.lastname: Berry
authors.affiliation: Department of Medicine, Division of Gastroenterology, University of Florida College of Medicine-Jacksonville, Jacksonville, Florida.
authors.forename: Juan C
authors.initials: JC
authors.lastname: Munoz
mesh_terms: D003113:Colonoscopy; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000209:etiology* / Q000473:pathology; D006801:Humans; D007150:Immunohistochemistry; D058965:MART-1 Antigen / Q000032:analysis; D008545:Melanoma / Q000150:complications* / Q000175:diagnosis* / Q000473:pathology; D058950:Melanoma-Specific Antigens / Q000032:analysis; D008853:Microscopy; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000150:complications* / Q000175:diagnosis* / Q000473:pathology; D009418:S100 Proteins / Q000032:analysis; D058951:gp100 Melanoma Antigen
chemical_list: D058965:MART-1 Antigen; C548667:MLANA protein, human; D058950:Melanoma-Specific Antigens; C548637:PMEL protein, human; D009418:S100 Proteins; D058951:gp100 Melanoma Antigen