What is a Ganglion Cyst?

Ganglion cyst or a bible cyst is a rounded lump, which is generally present on a muscle tendon near a joint. It is typically noticed as a slow growing or static swelling, which is painless and does not cause any functional restriction. Historically, ganglion cysts were treated by hitting them with a bible, and hence the name, “bible cyst“. Except the unsightly appearance, ganglion cysts are completely harmless and have absolutely no propensity of becoming cancerous. A neurofibroma is a similar lump occurring on nerves and has been known for cancerous transformation. Hence, it is very important to know whether one has a ganglion cyst or a neurofibroma.

Ganglion Cyst Causes and Symptoms

Ganglion cysts are filled with fluid which is quite similar to the synovial fluid of a joint. Though an absolute causal relation has not been established, yet many ganglion cysts are thought to arise from the joint capsule. Friction between a joint and the overlying tendons may have a major role in causing ganglion cysts.

Ganglion Cyst in Wrist

Ganglion cysts on wrist joint are exceedingly common. Ganglion cyst in wrist are located on the back of the wrist above the wrist bones scaphoid and lunate and are called dorsal ganglion cysts. Ganglion cysts on the front of wrist are called volar ganglion cysts. The size of a ganglion cyst in wrist may vary from a pea to a small lemon, but sometimes it can be large enough to cover the entire wrist. Larger ganglion cysts, though quite rare, tend to restrict wrist motion to some extent. Many people with concurrent carpal tunnel syndrome or other ailments tend to wrongly attribute the ganglion cyst in wrist as a cause of their pain. But, it is a misconception, as ganglion cysts are never painful.

Ganglion Cyst Finger

Similar to wrist, a ganglion cyst in finger is present near the first or second inter-phalengeal joint on the outer aspect. Even a small ganglion cyst in finger or a ganglion cyst in thumb can lead to a faulty grip or inability to fluently use the hand. Longstanding ganglion cyst in finger can cause a permanent finger deformity. Hence, such ganglion cysts should be promptly removed.

Ganglion Cyst Foot

The most common site for a ganglion cyst in foot is just below and in front of the ankle. Ganglion cysts in toe can be particularly problematic for wearing shoes or sandals with a pointed tip. This is the place where several small ankle bones, joints, and tendons, are present, making it a highly dynamic area of the foot. They frequently remain unnoticed or are discovered incidentally during foot examination for some other reason. Sometimes an increase in the size of a ganglion cyst in foot makes wearing of shoes difficult or even painful.