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J Korean Neurosurg Soc. 2009 Jan;45(1):57-9. doi: 10.3340/jkns.2009.45.1.57. Epub 2009 Jan 31.

Ulnar Nerve Compression at Guyon's Canal by an Arteriovenous Malformation.

Author information

  • 1Department of Neurosurgery, Eulji University School of Medicine, Seoul, Korea.

Abstract

Guyon's canal at the wrist is not the common site of ulnar nerve compression. Ganglion, lipoma, anomalous tendon and muscles, trauma related to an occupation, arthritis, and carpal bone fracture can cause ulnar nerve compression at the wrist. However, ulnar nerve compression at Guyon's canal by vascular lesion is rare. Ulnar artery aneurysm, tortous ulnar artery, hemangioma, and thrombosis have been reported in the literature as vascular lesions. The authors experienced a case of ulnar nerve compression at Guyon's canal by an arteriovenous malformation (AVM) and the patient's symptom was improved after surgical resection. We can not easily predict vascular lesion as a cause of ulnar nerve compression at Guyon's canal. However, if there is not obvious etiology, we should consider vascular lesion as another possible etiology.

KEYWORDS:

Arteriovenous malformation; Ulnar nerve

PMID:
19242575
[PubMed]
PMCID:
PMC2640828
Free PMC Article
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