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Past Issue:
Volume 21, Number 1 • January 2008
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Tuberculous tenosynovitis

Clayton J. Sanders, MD, and William G. Schucany, MD

A 29-year-old African American woman presented with pain and swelling of the hand and wrist with a low-grade fever. She was on immunosuppressive therapy for systemic lupus erythematosus. Plain radiographs (Figure 1) revealed inflammatory arthritis related to lupus, with subluxations at the metacarpophalangeal joints and radial deviation of the fingers. Classically, the joint space was preserved, osseous erosions were absent, and bone density was near normal.

Magnetic resonance (MR) images (Figures 2-8) showed a large effusion of the flexor tendon sheaths of both the hand and wrist with thick, smoothly marginated peripheral enhancement. Inflammatory debris and rice bodies can be seen within the large effusion.

What is the most likely diagnosis?