Ganglion Cysts

What is a ganglion?

A ganglion is a fluid filled cyst that arises in tendon sheaths. Tendons are the cords that connect muscles to bones. Tendons are often wrapped in a self-lubricating compartment or sheath, particularly when the tendon has to cross a movable joint, such as the wrist. In some cases, ganglions may also arise from the capsule or tissue around joints.

Where do ganglions occur?

The most common area for a ganglion to occur is the top of the wrist. They usually are moveable, soft, and non-tender. They may occur at other parts of the body as well.

Are they cancerous?

No. They are always benign and, unless they are causing any discomfort or are cosmetically bothersome, they do not need to be removed.

What is the treatment for a ganglion?

In many cases the liquid will be reabsorbed by the body and no treatment is needed. This is called a "self-limiting" process.

Other treatments consist of removing the fluid with a needle and syringe. However, when this treatment is used, the ganglion will commonly recur (50%).

If they are painful or unsightly they can be removed surgically with an anesthetic in a one- day surgery center or the hospital but does not require staying in the hospital. The anesthetic used can be local, nerve block or general.

(P.S. An old wives tale suggests that you can treat a ganglion by slamming it with a bible; don't even think of trying it. It doesn't work, not to mention it may cause bleeding or a broken bone!)