Contents
Ganglion Cysts: What You Need to Know
Published: Oct 23, 2023
Ganglion cysts are common, fluid-filled swellings found around joints or tendons. They are usually harmless but can cause discomfort or functional issues that might need medical attention.
Common Locations and Types
Ganglion cysts often appear on the dorsal side of the wrist, accounting for 70% of cases. They can also form on the volar side over the scaphotrapezoid joint or on the digital flexor tendon sheath. In some cases, they may develop in less common areas such as the foot, knee, or shoulder.
Diagnosing the Cyst
Diagnosis typically involves a physical exam where the cyst is checked for transillumination to differentiate it from solid tumors. Ultrasonography and MRI can further confirm the diagnosis, showing well-circumscribed cystic masses.
How Ganglion Cysts Present
Ganglion cysts may appear as visible swellings or cause joint pain, especially in the wrist. They are firm, smooth, and rubbery, and can change in size over time. Some patients seek treatment due to cosmetic concerns or fear of malignancy.
Frequently Asked Questions
The exact cause is unknown, but they may result from tissue herniation.
Not always; many resolve on their own without treatment.
Yes, especially if treated by aspiration rather than surgery.
No, they are benign and not cancerous.
Yes, they can impinge on nerves causing sensory loss.
Wrapping Up
Ganglion cysts are generally harmless but can be bothersome, so understanding them is key.
References
- Dyer SM, Simmons BP. The wrist and hand. In: Rheumatology, 6, Hochberg MC, Silman AJ, Smolem JS, et al (Eds), Mosby, St.Louis 2015. Vol 1, p.624.
- Lowden CM, Attiah M, Garvin G, et al. The prevalence of wrist ganglia in an asymptomatic population: magnetic resonance evaluation. J Hand Surg Br 2005; 30:302.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic. Always discuss health information with your healthcare provider.
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