title: Rapid destruction of the hip joint associated with enlarged iliopsoas bursa in a patient with refractory rheumatoid arthritis.
abstract: A case of refractory rheumatoid arthritis with a rapid destruction of the hip joint and an enlarged iliopsoas bursa is presented. Rapidly destructive coxarthrosis, chondrocalcinosis, suppurative arthritis, and pigmented villonodular synovitis were the differential diagnoses. Radiological examination showed that rheumatoid arthritis was most likely diagnosis. The patient was treated with total hip arthroplasty and etanercept, with good results.
authors.affiliation: Department of Joint Disease and Rheumatism, Nippon Medical School, Tokyo, Japan.
authors.forename: Taro
authors.initials: T
authors.lastname: Yoshioka
authors.forename: Akitoshi
authors.initials: A
authors.lastname: Tachihara
authors.forename: Tairo
authors.initials: T
authors.lastname: Koyama
authors.forename: Kayo
authors.initials: K
authors.lastname: Iwakawa
authors.forename: Manabu
authors.initials: M
authors.lastname: Sakane
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Nakamura
mesh_terms: D018501:Antirheumatic Agents / Q000627:therapeutic use; D001172:Arthritis, Rheumatoid / Q000000981:diagnostic imaging* / Q000473:pathology / Q000628:therapy; D019644:Arthroplasty, Replacement, Hip; D002061:Bursa, Synovial / Q000000981:diagnostic imaging* / Q000473:pathology; D003937:Diagnosis, Differential; D000068800:Etanercept; D006621:Hip Joint / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D006801:Humans; D007074:Immunoglobulin G / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D011859:Radiography; D018124:Receptors, Tumor Necrosis Factor / Q000627:therapeutic use; D016896:Treatment Outcome
chemical_list: D018501:Antirheumatic Agents; D007074:Immunoglobulin G; D018124:Receptors, Tumor Necrosis Factor; D000068800:Etanercept