By Gary M. White, MD

Ganglion Cyst

The ganglion cyst is a fluid-filled cavity occurring over a joint. The fluid derives from synovial fluid and there is or at some point was a connection with the joint. The cyst wall is fibrous. There is no specific endothelial lining.


A 1-3 cm. subcutaneous nodule overlying the ankle or wrist may represent a ganglion cyst.


No treatment is needed. Surgical excision by a trained specialist is appropriate. Draining commonly leads to recurrence.

Additional Pictures

Ganglion Cyst


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