title: An unusual cause of melena and abdominal pain.
authors: Division of Gastroenterology, Hepatology, and Nutrition, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
authors: Elizabeth
authors: E
authors: Blaney
authors: Division of Gastroenterology, Hepatology, and Nutrition, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
authors: Jana G
authors: JG
authors: Hashash
authors: Division of Gastroenterology, Hepatology, and Nutrition, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
authors: Miguel D
authors: MD
authors: Regueiro
mesh_terms: D015746:Abdominal Pain / Q000209:etiology*; D000686:Amyloidosis / Q000097:blood / Q000150:complications / Q000175:diagnosis*; D015415:Biomarkers / Q000097:blood; D001706:Biopsy; D003113:Colonoscopy; D058582:Double-Balloon Enteroscopy; D005767:Gastrointestinal Diseases / Q000097:blood / Q000150:complications / Q000175:diagnosis*; D006801:Humans; D000075363:Immunoglobulin Light-chain Amyloidosis; D007145:Immunoglobulin kappa-Chains / Q000097:blood; D008297:Male; D008551:Melena / Q000209:etiology*; D008875:Middle Aged; D014057:Tomography, X-Ray Computed
chemical_list: D015415:Biomarkers; D007145:Immunoglobulin kappa-Chains