What are they?
Ganglion cysts are very common lumps within the hand and wrist that occur adjacent to joints or tendons. The most common locations are the top of the wrist (see Figure 1), the palm side of the wrist, the base of the finger on the palm side, and the top of the end joint of the finger (see Figure 2). The ganglion cyst often resembles a water balloon on a stalk (see Figure 3), and is filled with clear fluid or gel. The cause of these cysts is unknown although they may form in the presence of joint or tendon irritation or mechanical changes. They occur in patients of all ages.
These cysts may change in size or even disappear completely, and they may or may not be painful. These cysts are not cancerous and will not spread to other areas.
How are they diagnosed?
The diagnosis is usually based on the location of the lump and its appearance. They are usually oval or round and may be soft or very firm. Cysts at the base of the finger on the palm side are typically very firm, pea sized nodules that are tender to applied pressure, such as when gripping. Light will often pass through these lumps, (trans-illumination) and this can assist in the diagnosis. Your physician may request x rays in order to investigate problems in adjacent joints. Cysts at the end joint of the finger frequently have an arthritic bone spur associated with them.
What are the treatment options?
Treatment can often be non-surgical. In many cases, these cysts can simply be observed, especially if they are painless, as they frequently ................
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