What are the signs of cranial nerve involvement in scorpion envenomation?

Updated: Nov 09, 2018
  • Author: David Cheng, MD; Chief Editor: Joe Alcock, MD, MS  more...
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Answer

Cranial nerve signs are as follows:

  • Classic rotary eye movement may result in ptosis, nystagmus, and blurred vision.

  • Mydriasis is a sign.

  • Patients may have tongue fasciculations.

  • Dysphagia, dysarthria, and stridor occur secondary to pharyngeal reflex loss or muscle spasm.

  • Patients may present with excessive salivation and drooling.


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