Myxoid Cyst

Who's At Risk?

Myxoid cysts are common and are more common in women and the elderly. These lesions occur more frequently on the fingers than on the toes.

Signs & Symptoms

The most common location for myxoid cysts is the fingers. They are usually found near the base of the nail, slightly off to one side or the other. Occasionally, myxoid cysts can occur beneath the nail or involve the root of the nail. When this happens, changes in the nail, such as grooves, depressions, or slight color changes, may be seen. Rarely, these cysts involve the fat pad of the fingertip.

The lesion is a solitary, rounded, flesh-colored, or translucent bump or nodule that may feel relatively firm or may feel more fluid-filled (fluctuant). The fluid inside myxoid cysts is thick, sticky, and clear to yellowish in color.

Self-Care Guidelines

None necessary.

Treatments

If the diagnosis is not certain, your physician may recommend further testing, such as an X-ray, ultrasound, CT scan, or MRI.

Some myxoid cysts will disappear spontaneously. Recurrence rates are high. Patients who fail conservative treatment may require referral to a dermatologic or hand surgeon. A number of treatment options are available. These include, most commonly:

• Repeated puncture
• Corticosteroid tape (flurandrenolide)
• Steroid injections (triamcinolone)
• Cryosurgery (freezing)
• Surgical excision

Visit Urgency

Myxoid cysts are benign, but patients may seek treatment if they become unsightly, cumbersome, or painful.

Trusted Links

• MedlinePlus: Finger Injuries and Disorders
• Clinical Information and Differential Diagnosis of Cyst, Myxoid

References

Bolognia, Jean L., ed. Dermatology, pp.1075, 1730, 2325. New York: Mosby, 2003.

Freedberg, Irwin M., ed. Fitzpatrick’s Dermatology in General Medicine. 6^th ed, pp.671, 2580. New York: McGraw-Hill, 2003.