title: Rheumatoid arthritis associated with osteopetrosis.
abstract: Osteopetrosis is an inherited disorder characterized by reduced bone resorption. We here report a rare case of osteopetrosis associated with rheumatoid arthritis. The patient was diagnosed as autosomal dominant osteopetrosis type II in his youth and developed rheumatoid arthritis at 42 years of age. In spite of the severe inflammation and rapid progression of cartilage destruction, the progression of bone erosion was slow in this patient.
authors: Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
authors: Yuho
authors: Y
authors: Kadono
authors: Sakae
authors: S
authors: Tanaka
authors: Jinju
authors: J
authors: Nishino
authors: Keita
authors: K
authors: Nishimura
authors: Ichiro
authors: I
authors: Nakamura
authors: Tsuyoshi
authors: T
authors: Miyazaki
authors: Hiroshi
authors: H
authors: Takayanagi
authors: Kozo
authors: K
authors: Nakamura
mesh_terms: D001172:Arthritis, Rheumatoid / Q000150:complications* / Q000000981:diagnostic imaging / Q000235:genetics; D015519:Bone Density / Q000235:genetics; D001862:Bone Resorption / Q000150:complications / Q000000981:diagnostic imaging / Q000235:genetics; D001842:Bone and Bones / Q000473:pathology*; D018450:Disease Progression; D006801:Humans; D007249:Inflammation / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D010022:Osteopetrosis / Q000150:complications* / Q000000981:diagnostic imaging / Q000235:genetics; D011859:Radiography