Myxoid Cysts

Myxoid Cysts

I. Definition:

A myxoid cyst is a soft rubbery nodule, skin colored or translucent and usually occurs near the end of the fingers or toes. Myxoid cysts sometimes cause a groove to form in the nail and at times are painful. Myxoid cysts are usually 1/4 to 3/4 inches in size. Sometimes they burst discharging a clear thick fluid. These cysts are more common in women and are more frequent in people over the age of 40.

II. Causes:

Myxoid cysts often appear at the site of an old injury, sites of friction, and at sites of minor trauma.
Myxoid cysts are not derived from the joint or tendon sheath. They are not synovial cysts nor are they ganglia as commonly believed.

III. Treatment:

Myxoid cysts do not need to be treated unless they are causing discomfort. Sometimes they will go away by themselves.
Myxoid cysts may be frozen with liquid nitrogen leaving a flat white scar.
Cortisone injections are sometimes effective in making a myxoid cyst go away.
Myxoid cysts can be removed surgically, but they have a high rate of recurrence.

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