title: Giant geode (subchondrial cyst) in calcium pyrophosphate deposition disease on the curist.
abstract: It is important to be aware of the radiographic features of pyrophosphate arthropathy with or without associated chondrocalcinosis. Accordingly, when appropriate structural joint changes are present an extraordinarily large subchondral cyst should not prompt a misdiagnosis of cystic tumor.
mesh_terms: D001845:Bone Cysts / Q000000981:diagnostic imaging* / Q000209:etiology; D001847:Bone Diseases / Q000150:complications*; D002805:Chondrocalcinosis / Q000150:complications; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D014955:Wrist Joint