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MODERN RHEUMATOLOGY Vol.15 No.4

Vol.15 No.4 に戻る

CASE REPORT

Characteristic appearance of large subcutaneous gouty tophi in magnetic resonance imaging

Kazuteru Ryu1 , Hideyuki Takeshita1, Yoshinori Takubo1, Masazumi Hirata1, Daigo Taniguchi1, Naoko Masuzawa2, Mitsuo Kishimoto2 and Toshikazu Kubo3

(1) Department of Orthopedic Surgery, Otsu Municipal Hospital, 9-9 Motomiya, Otsu 520-0804, Japan
(2) Department of Pathology, Otsu Municipal Hospital, Otsu, Japan
(3) Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan

Received: 20 December 2004 Accepted: 26 April 2005

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Abstract The development of multiple large tophi in patients with gout is rare. We report magnetic resonance (MR) and histological features of large subcutaneous tophi in a 32-year-old male patient with no known arthritis. His subcutaneous lesions were confused with a neoplastic process, evaluated by MR imaging, and surgically excised after biopsy. The honeycomb-like appearance on the gadolinium-enhanced images may reflect the characteristic multilobular structure of the tophi composed of avascular urate deposits and surrounding vascularized granulation tissue.

Key words Gouty tophi - Magnetic resonance (MR) imaging

 

 
 
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