wrist cyst
Ganglion cysts usually occur on the wrist or hand, but they can also appear on the ankle or foot. Ganglion cysts are common and usually harmless. If a ganglion cyst causes pain or limits your mobility, your doctor can use a syringe to remove fluid from it.
A ganglion cyst is a round, fluid-filled lump of tissue that usually appears along tendons or joints. It typically occurs on the wrist or hand, but it can also appear on the ankle or foot. Ganglion cysts can be as large as an inch across.