About Mucoid Cysts

On some occasions mucoid cysts can extend into the fingernail bed causing a nail deformity. It usually presents itself as a small but sometimes painful nodule. Most patients that suffer from mucoid cysts, usually have a history of osteoarthritis or degeneration of the joint.

Signs & Symptoms

A mucoid cyst normally appears as a non-mobile nodule around the first knuckle of the finger. The cyst is normally soft to firm to touch, can vary in size and on occasion, can cause a nail deformity. Larger mucoid cysts may be tender and painful, interfering with day to day activities.

On consultation, A/Prof Lawson-Smith will do an examination of the finger combined with a past history and imaging studies (normally an x-ray is ordered prior to your appointment). Since the cysts are often associated with degenerative changes in the finger joint, it is important that the joint is evaluated so that any underlying condition can be addressed and the best treatment option is given to you.

Treatment Options

How is a mucoid cyst removed?

The cyst is removed by making a short incision directly over the cyst. Any damaged tissue/skin is removed which normally lies over the cyst. The cyst and the root of the cyst which connects to the joint is then removed (which helps minimise the chance of recurrence). Sutures are used to close the incision. A small flap may be used to help cover the defect.

A plaster cast is normally applied or the use of a splint. This is to be kept on for approximately 2 weeks. You will be admitted as a day case and discharged the same day.

What happens after treatment?

An appointment is allocated to you at the time of surgical booking. This appointment normally occurs around 2 – 3 weeks post operatively. At this appointment, A/Prof Matthew Lawson-Smith and the Practice Nurse will remove any sutures and a post-operative consultation will take place.

Risks & Concerns

The associated risks of surgery include:

Infection
Scar
Pain
Stiffness
Swelling
Complex Regional Pain Syndrome

Need for further surgery
Failure to relieve symptoms
Worsening pain
Bleeding
Neurovascular deficit or injury
Risk of anaesthetic

If you experience any problems or have any concerns following your surgery, please do not hesitate to contact the office. A/Prof Lawson-Smith’s staff will ensure that A/Prof Matthew Lawson-Smith is kept informed of what is occurring and will advise you the best course of action.

If you are unable to reach the office, please do not hesitate to contact your General Practitioner or if it is an emergency, please present to your nearest Emergency Department.