Ganglion cyst - flexor tendon sheath A1 pulley
Pain and swelling at the base of the volar aspect of the right 5th finger
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There is a 5x7 mm well-defined cyst with the fluid equivalent signal at the level of the fifth metacarpophalangeal joint in the radial side and adjacent to the respective fifth flexor tendon sheath A1 pulley.
Ganglion cyst of the finger flexor tendon occurs more often in women (2.6:1). The middle finger is most commonly affected site and is located at the A1 and A3 pulleys in 69% of cases 1.
- 1. Abe Y, Watson HK, Renaud S. Flexor tendon sheath ganglion: analysis of 128 cases. (2004) Hand surgery : an international journal devoted to hand and upper limb surgery and related research : journal of the Asia-Pacific Federation of Societies for Surgery of the Hand. 9 (1): 1-4. Pubmed