Small soft bump associated with a joint or tendon sheath[3]
Complications
Only with operative treatment
Usual onset
Any age
Diagnostic method
Typically based on signs[4]
Differential diagnosis
Lipoma, extensor tenosynovitis[4]
Treatment
Watchful waiting, splinting the affected joint, needle aspiration, surgery[3]
Prognosis
Not serious[3]
Frequency
~3 per 10,000 per year (wrist and hand)[5]
A ganglion cyst is a fluid-filled bump associated with a joint or tendon sheath.[3] It most often occurs at the back of the wrist, followed by the front of the wrist.[3][4]
The cause is unknown.[3] The underlying mechanism is believed to involve an outpouching of the synovial membrane.[4] Diagnosis is typically based on examination. The ability to shine through the bump or any past decrease in size supports the diagnosis of the bump as a ganglion cyst.[4] Ganglion cysts are usually obvious upon observation. Medical imaging may be considered on infrequent occasions to rule out another diagnosis.[3][4]
Treatment is not necessary. Options for treatment include needle aspiration or surgery.[3] About half the time, they resolve on their own.[4] About three per 10,000 people newly develop ganglion of the wrist or hand a year.[5]
^"National Library of Medicine - Medical Subject Headings (MeSH) - Ganglion Cyst". Archived from the original on March 10, 2016. Retrieved August 27, 2013.
^"E-hand.com The Electronic Textbook of Hand Surgery". The American Society for Surgery of the Hand assh.com. Archived from the original on March 9, 2014. Retrieved April 12, 2014.
^ abcdefgh"Ganglion Cyst of the Wrist and Hand-OrthoInfo". orthoinfo.aaos.org. March 2013. Archived from the original on 6 July 2017. Retrieved 10 June 2017.
^ abcdefgFerri FF (2014). Ferri's Clinical Advisor 2015 E-Book: 5 Books in 1. Elsevier Health Sciences. p. 472. ISBN 9780323084307. Archived from the original on 2017-09-10.
^ abCooney WP (2011). The Wrist: Diagnosis and Operative Treatment. Lippincott Williams & Wilkins. p. 1089. ISBN 9781451148268. Archived from the original on 2017-09-10.
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