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Journal of Neurosurgical Sciences 2010 September;54(3):125-7

Copyright © 2010 EDIZIONI MINERVA MEDICA

language: English

Ulnar nerve entrapment in Guyon’s canal due to a lipoma

Ozdemir O., Calisaneller T., Gerilmez A., Gulsen S., Altinors N.

Department of Neurosurgery, Baskent University Faculty of Medicine, Ankara, Turkey


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Guyon’s canal syndrome is an ulnar nerve entrapment at the wrist or palm that can cause motor, sensory or combined motor and sensory loss due to various factors . In this report, we presented a 66-year-old man admitted to our clinic with a history of intermittent pain in the left palm and numbness in 4th and 5th finger for two years. His neurological examination revealed a sensory impairment in the right fifth finger. Also, physical examination displayed a subcutaneous mobile soft tissue in ulnar side of the wrist. Electromyographic examination confirmed the diagnosis of type-1 Guyon’s canal syndrome. Under axillary blockage, a lipoma compressing the ulnar nerve was excised totally and ulnar nerve was decompressed. The symptoms were improved after the surgery and patient was symptom free on 3rd postoperative week.

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