title: Severe gastrointestinal complications of dialysis-related amyloidosis in two patients on long-term hemodialysis.
abstract: Two patients undergoing long-term hemodialysis developed severe gastrointestinal complications due to dialysis-related amyloidosis (DRA). Case 1, a 68-year-old male on hemodialysis for 18 years developed marked gastric dilatation and severe paralytic ileus. Five years later he died of peritonitis. Autopsy showed extensive amyloid deposits in the muscle layers and blood vessels throughout the gastrointestinal tract. Case 2, a 56-year-old male on hemodialysis for 19 years, developed panperitonitis due to perforation of the sigmoid colon. The resected colon showed massive amyloid deposits in the muscle layers. In both cases, immunological studies revealed positive staining for antihuman beta2-microglobulin antibody. In long-term hemodialysis patients with gastrointestinal symptoms, gastrointestinal complications of DRA should be considered.
authors.affiliation: Department of Internal Medicine, Naruwa General Hospital, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Araki
authors.forename: H
authors.initials: H
authors.lastname: Muramoto
authors.forename: K
authors.initials: K
authors.lastname: Oda
authors.forename: I
authors.initials: I
authors.lastname: Koni
authors.forename: H
authors.initials: H
authors.lastname: Mabuchi
authors.forename: Y
authors.initials: Y
authors.lastname: Mizukami
authors.forename: A
authors.initials: A
authors.lastname: Nonomura
mesh_terms: D000368:Aged; D000686:Amyloidosis / Q000097:blood / Q000209:etiology* / Q000628:therapy; D003106:Colon / Q000473:pathology; D017809:Fatal Outcome; D005767:Gastrointestinal Diseases / Q000209:etiology* / Q000473:pathology; D006801:Humans; D007676:Kidney Failure, Chronic / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D010538:Peritonitis / Q000209:etiology; D011860:Radiography, Abdominal; D006435:Renal Dialysis / Q000009:adverse effects*; D013270:Stomach / Q000473:pathology; D001613:beta 2-Microglobulin / Q000378:metabolism
chemical_list: D001613:beta 2-Microglobulin