Ganglion cysts are the most common mass or lump in the hand. They are not cancerous and usually harmless. They occur in various locations, but most frequently develop on the back of the wrist. These fluid-filled cysts can appear, disappear and change size. If the cyst is painful, interferes with function, or has an unacceptable … Continue reading Mysterious, Moveable and Removable Ganglion Cyst