Hip & Pelvis  2012;24(4):328-332

doi:10.5371/hp.2012.24.4.328

Acute Phase of Sero-negative Rheumatoid Arthritis Misdiagnosed as Pyogenic Arthritis: A Case Report.

Cheol Hee PARK 1 ; Joo Hyun LEE ; Tae Jin KIM ; Dong HURR ; Young Soo CHUN ; Kee Hyung RHYU ; Yoon Je CHO

Affiliations

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Keywords

Hip; Seronegative rheumatoid arthritis; Pyogenic arthritis

Country

Republic of Korea

Language

Korean

Abstract

In cases of sero-negative rheumatoid arthritis (RA), no abnormal findings are observed on blood tests and its clinical course is favorable, compared to sero-positive RA. In the acute phase of sero-negative RA, infiltration of neutrophils may be the only pathologic finding on frozen section biopsy. Thus, it might be misdiagnosed as pyogenic arthritis. We report on a case of acute sero-negative RA misdiagnosed as pyogenic arthritis during hip surgery with review of the literature.