A ganglion is a fluid-filled cyst that commonly develops around a joint or tendon in the wrist or hand. Ganglion cysts are benign and many do not require treatment. However, if a ganglion is painful, uncomfortable or interfering with everyday activities, aspiration may be an option.

 

At Bristol Joint Injections, we offer assessment and ultrasound-guided aspiration of suitable ganglion cysts.

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What is a Ganglion Cyst?

A ganglion is a cyst containing thick, jelly-like fluid. It develops in connection with a joint or tendon sheath. Ganglia are among the most common lumps found around the wrist and hand.

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They frequently occur:

• On the back of the wrist

• On the palm side of the wrist

• Around the base of a finger

• Around finger joints

They can change in size and may sometimes disappear without treatment.

Clinical symptoms include:​

Some ganglia cause no symptoms other than a visible lump.

Others can cause:

• Aching or pain

• Discomfort when moving the wrist

• Pain when gripping or putting weight through the hand

• Local pressure or tenderness

• Difficulty with particular activities

• Concern about the lump itself

 

Does a ganglion cyst always need treatment?

No.

 

Ganglion cysts are benign and can safely be left alone when they are not causing significant problems. Some disappear spontaneously. If a lump has not been diagnosed, however, it is important not simply to assume that it is a ganglion. We will assess the lump and determine whether its features are consistent with a ganglion and whether aspiration is appropriate.

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What is ganglion aspiration?

Aspiration involves inserting a needle into the cyst and withdrawing its fluid. At Bristol Joint Injections, suitable ganglia are aspirated under ultrasound guidance. Ultrasound allows us to visualise the cyst and surrounding structures during the procedure. The thick consistency of ganglion fluid means that aspiration can sometimes be more difficult than draining a simple fluid-filled cyst.

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Will aspiration permanently remove my ganglion?

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This is an important limitation of the procedure.

Ganglion cysts can come back after aspiration.

Aspiration removes the contents of the cyst but does not necessarily remove the connection between the ganglion and the underlying joint or tendon sheath. For some people, aspiration provides worthwhile relief despite this possibility. For others, the cyst may refill. We will discuss recurrence and the alternatives with you before deciding whether to proceed.

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Are all ganglion cysts suitable for aspiration?

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No.

 

The suitability of aspiration depends on factors including the location and appearance of the ganglion and its relationship to nearby structures. This is particularly important for ganglia on the palm side of the wrist, which can lie close to important blood vessels and nerves. If we do not feel that aspiration is appropriate or safe, we will explain this and advise you about other options.

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Medical Resource: 

For further clinical guidelines on Ganglion Cysts, view the official NHS Ganglion Cyst Resource

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