| Summary: | Summary:. Guyon’s syndrome results from a lesion of the ulnar nerve at the wrist caused by several conditions. The most common causes are ganglion, lipomas, fractures of the radius or pisiform bone, occupational trauma, neuritis, musculotendinous arch, and diseases of the ulnar artery. The clinical presentation varies with the site of lesion, as described by Sean and McClain in 1969, and can involve combined sensory and motor deficits, motor deficit alone, or sensory deficit alone. We present a case of bilateral Guyon’s canal syndrome caused by a lipoma with Pacinian corpuscles on both wrists. Patient presented with sensory deficit as it is described by Shea and McClain with a negative electroneuromyography for ulnar compression. Articles correlating clinical presentation, etiology, and electrophysiological findings relating to ulnar nerve compression on the wrist are still uncommon in the literature.
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