Myxoid cyst

Myxoid cyst also known as a digital mucous cyst or pseudocyst is a noncancerous, fluid-filled growth usually occurring on the fingers or toes. These cysts are associated with osteoarthritis and are caused by degeneration of the connective tissue of the fingers or toes.

Causes

The exact cause of myxoid cysts is unknown. However, they are often associated with osteoarthritis and aging. They may also be caused by damage to the fingers or toes, such as a nail injury.

Symptoms

The main symptom of a myxoid cyst is a small, firm, raised bump on the skin. The cyst may be clear or have a jelly-like appearance. It may also cause the nail to grow irregularly or become discolored.

Diagnosis

A myxoid cyst can be diagnosed by a dermatologist or a general practitioner. The doctor will examine the cyst and may take a sample of the fluid inside for testing. In some cases, an ultrasound or MRI may be used to confirm the diagnosis.

Treatment

Treatment for a myxoid cyst may include draining the fluid, steroid injections, or surgical removal. In some cases, the cyst may disappear on its own without treatment.

Prognosis

The prognosis for a myxoid cyst is generally good. However, the cyst may recur after treatment.

See also

• Cyst
• Osteoarthritis
• Dermatology

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