Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Case Reports
. 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

Sung Soo Kim  1 , Jae Hoon Kim, Hee In Kang, Seung Jin Lee
Affiliations
Case Reports

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

Sung Soo Kim et al. J Korean Neurosurg Soc. 2009 Jan.

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.

PubMed Disclaimer

Figures

Fig. 1
Fig. 1
Intraoperative photographs showing the ulnar nerve and anomalous vascular structure at Guyon's canal, (A) and the resection of arteriovenous malformation arising from the ulnar vessels crossing the ulnar nerve (B).
Fig. 2
Fig. 2
Photomicrograph demonstrating various sized arteries and veins (H & E stain, original magnification×200).
See this image and copyright information in PMC

References

    1. Aguiar PH, Bor-Seng-Shu E, Gomes-Pinto F, Almeida-Leme RJ, Freitas AB, Martins RS, et al. Surgical management of Guyon's canal syndrome, an ulnar nerve entrapment at the wrist : report of two cases. Arq Neuropsiquiatr. 2001;59:106–111. - PubMed
    1. Bozkurt MC, Tagil SM, Ozçakar L, Ersoy M, Tekdemir I. Anatomical variations as potential risk factors for ulnar tunnel syndrome : a cadaveric study. Clin Anat. 2005;18:274–280. - PubMed
    1. Erkin G, Uysal H, Keles I, Aybay C, Ozel S. Acute ulnar neuropathy at the wrist : a case report and review of the literature. Rheumatol Int. 2006;27:191–196. - PubMed
    1. Jose RM, Bragg T, Srivastava S. Ulnar nerve compression in Guyon's canal in the presence of a tortuous ulnar artery. J Hand Surg Br. 2006;31:200–202. - PubMed
    1. Koch H, Haas F, Pierer G. Ulnar nerve compression in Guyon's canal due to a haemangioma of the ulnar artery. J Hand Surg Br. 1998;23:242–244. - PubMed

Publication types

LinkOut - more resources