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Hereditary neuropathy with liability to pressure palsies (HNPP) presents with recurrent episodes of peripheral nerve palsies, usually after a minor trauma at the common site of compression or entrapment of the upper and lower extremities.1 Involvement of the cranial nerves has been rare in patients with HNPP, and vocal cord paralysis has not been reported. We describe a patient with HNPP who presented an acute onset of aphonia due to recurrent laryngeal nerve palsy triggered by sleeping in the prone position.
Case report.
A 19-year-old woman presented with two episodes of hand drop and a subsequent episode of aphonia and hoarseness. At age 18 years, she found herself unable to raise her right wrist and extend the fingers of her right hand after waking up from a nap on a train seat, leaning her elbow on the armrest. Although movement of her wrist and fingers recovered somewhat, her paralysis did not recover completely. Six months later, she …
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