J Korean Neurosurg Soc.  2011 Feb;49(2):139-141. 10.3340/jkns.2011.49.2.139.

Ulnar Nerve Compression in Guyon's Canal by Ganglion Cyst

• Kwak KW
• Kim MS
• Chang CH
• Kim SH

• KMID: 1442624
• DOI: http://doi.org/10.3340/jkns.2011.49.2.139

Abstract

Compression of the ulnar nerve in Guyon's canal can result from repeated blunt trauma, fracture of the hamate's hook, and arterial thrombosis or aneurysm. In addition, conditions such as ganglia, rheumatoid arthritis and ulnar artery disease can rapidly compress the ulnar nerve in Guyon's canal. A ganglion cyst can acutely protrude or grow, which also might compress the ulnar nerve. So, clinicians should consider a ganglion cyst in Guyon's canal as a possible underlying cause of ulnar nerve compression in patients with a sudden decrease in hand strength. We believe that early decompression with removal of the ganglion is very important to promote complete recovery.

Keyword

Guyon's canal; Ganglion cyst; Compression

MeSH Terms

Aneurysm
Arthritis, Rheumatoid
Decompression
Ganglia
Ganglion Cysts
Hand Strength
Humans
Thrombosis
Ulnar Artery
Ulnar Nerve
Ulnar Nerve Compression Syndromes