title: Radiologic features of a pyrophosphate-like arthropathy associated with long-term dialysis.
abstract: In a series of 28 long-term dialysis patients with musculoskeletal complaints, the radiologic findings in six cases resembled those occurring in the arthropathy of idiopathic calcium pyrophosphate dihydrate deposition (CPPD) disease. These findings included osteophytes, subchondral cysts, and cartilage loss in the metacarpophalangeal joints, patellofemoral joints, wrists, and shoulders. Chondrocalcinosis was present in three of the six cases. There were no significant differences in renal function or levels of serum calcium, phosphorus, iron, ferritin, aluminum, or parathormone between these patients and a control group matched for sex and age. Long-term dialysis may be associated with a metabolic arthritis similar to the arthritis which occurs in CPPD deposition disease. The etiology may include deposition of CPPD crystals, hydroxyapatite, or other calcium-containing substances in joints, or it may be related to a number of dialysis-induced metabolic abnormalities.
authors.affiliation: Department of Radiology, University of Michigan, Ann Arbor.
authors.forename: E M
authors.initials: EM
authors.lastname: Braunstein
authors.forename: K
authors.initials: K
authors.lastname: Menerey
authors.forename: W
authors.initials: W
authors.lastname: Martel
authors.forename: R
authors.initials: R
authors.lastname: Swartz
authors.forename: I H
authors.initials: IH
authors.lastname: Fox
mesh_terms: D001168:Arthritis / Q000000981:diagnostic imaging*; D001175:Arthrography; D002114:Calcinosis / Q000000981:diagnostic imaging; D002131:Calcium Pyrophosphate / Q000378:metabolism*; D002358:Cartilage, Articular / Q000000981:diagnostic imaging; D003560:Cysts / Q000000981:diagnostic imaging; D011756:Diphosphates / Q000378:metabolism*; D006432:Hemochromatosis / Q000000981:diagnostic imaging; D006801:Humans; D006962:Hyperparathyroidism, Secondary / Q000000981:diagnostic imaging; D007501:Iron / Q000378:metabolism; D007676:Kidney Failure, Chronic / Q000000981:diagnostic imaging*; D006435:Renal Dialysis
chemical_list: D011756:Diphosphates; D007501:Iron; D002131:Calcium Pyrophosphate