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Synovial Chondromatosis of the Subtalar Joint and Tenosynovial Chondromatosis of the Posterior Ankle

Phi Van Department of Podiatry, Kansas Podiatry Associates, El Dorado.

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Peter M. Wilusz Department of Surgery, Southeast Michigan Surgical Hospital, Warren.

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David S. Ungar Department of Surgery, Southeast Michigan Surgical Hospital, Farmington.

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Guy R. Pupp Department of Surgery, Kern Hospital, Warren, MI.

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Synovial chondromatosis is a rare, generally benign condition characterized by the formation of multiple cartilaginous nodules in the synovium of joints and occasionally on the tendon sheath or bursae. If the nodules are intra-articular, the condition is referred to as synovial chondromatosis; if extra-articular, tenosynovial chondromatosis. This space-occupying lesion can lead to chronic pain and limit the function of involved joints. We report a case of synovial chondromatosis involving the subtalar joint and tenosynovial chondromatosis involving the posterior ankle and review current definitions of this uncommon lower-extremity condition. (J Am Podiatr Med Assoc 96(1): 59–62, 2006)

Corresponding author: Peter M. Wilusz, DPM, Department of Surgery, Southeast Michigan Surgical Hospital, 21230 Dequindre, Warren, MI 48091.