A ganglion is a cyst that forms on top of a joint, ligament, or tendon. The cyst is filled with fluid. Because the ganglion is not cancerous and may disappear in time, if you do not have symptoms such as pain, your doctor may recommend observation only to make sure that no unusual changes occur.
The procedure to remove a ganglion is called ganglion resection. The initial treatment of a ganglion is not surgical, but if pain becomes a problem, your orthopaedic foot and ankle specialist may recommend aspiration, a procedure to remove the cyst’s fluid through a needle. If the cyst returns, surgery to remove the ganglion might be an option.