Ganglion Cyst

Ganglion cysts are fluid filled growths that most commonly develop on the hand.  They are filled with synovium, which is the same fluid than lubricates the joints and tendon sheaths.  They typically arise from joint or tendon sheaths.  Common locations include the dorsum (back) of the wrist, front of the thumb side of the wrist, at the base of the nail, and on the front of the finger near the web space.

What causes ganglion cysts?

Most of the time there is no specific event that causes a ganglion cyst to form.  Generally, they are associated with wear and tear.  The type of cyst near the base of the fingernail, called a mucous cyst, has a strong association with arthritis of the joint.

How are ganglion cysts treated?

Treatment generally involves excision if the cyst is bothersome or painful.  Drainage, steroid injection and smashing ganglion cysts generally results in recurrence.

How difficult is the recovery after ganglion cyst excision?

After excision of most ganglion cysts there is a 1-2 week period of immobilization followed by limited use of the hand for 1-2 weeks.

By around 3 weeks full activity is allowed.  The recurrence rate after excision is quite low.