title: Idiopathic calcium pyrophosphate dihydrate (CPPD) crystal deposition disease in a young male patient: a case report.
abstract: Calcium pyrophosphate dihydrate (CPPD) crystal deposition disease is a disease of the elderly and extremely rare in young individuals. If young people develop CPPD crystal deposition disease, it may be associated with metabolic diseases such as hemochromatosis, hyperparathyroidism, hypophosphatasia, hypomagnesemia, Wilson's disease, hypothyroidism, gout, acromegaly, and X-linked hypophosphatemic rickets. Therefore, in young-onset polyarticular CPPD crystal deposition disease, investigation for predisposing metabolic conditions is warranted. We report a case of a young male patient with idiopathic CPPD crystal deposition disease, who did not have any evidences of metabolic diseases after thorough evaluations. As far as we know, this is the first report of a young male patient presented with idiopathic CPPD crystal deposition disease.
authors.affiliation: Department of Medicine, Samsung Medical Center, Seoul, Korea.
authors.forename: Joong Kyung
authors.initials: JK
authors.lastname: Ahn
authors.forename: Hyung Jin
authors.initials: HJ
authors.lastname: Kim
authors.forename: Eung Ho
authors.initials: EH
authors.lastname: Kim
authors.forename: Chan Hong
authors.initials: CH
authors.lastname: Jeon
authors.forename: Hoon-Suk
authors.initials: HS
authors.lastname: Cha
authors.forename: Chul Won
authors.initials: CW
authors.lastname: Ha
authors.forename: Joong Mo
authors.initials: JM
authors.lastname: Ahn
authors.forename: Eun-Mi
authors.initials: EM
authors.lastname: Koh
mesh_terms: D000328:Adult; D002131:Calcium Pyrophosphate / Q000378:metabolism*; D002358:Cartilage, Articular / Q000378:metabolism / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D007719:Knee Joint / Q000473:pathology*; D008297:Male; D008659:Metabolic Diseases / Q000378:metabolism / Q000473:pathology; D012785:Shoulder Joint / Q000473:pathology
chemical_list: D002131:Calcium Pyrophosphate