Glossary of Terms in Otolaryngology

Bogorad Syndrome

  • Bogorad Syndrome, also known as crocodile tear syndrome is a phenomenon where there is tearing (lacrimation) while eating.12
    • This occurs when regenerating efferent salivatory facial nerve fibres improperly connect to axons from the lacrimal gland.
    • This misdirection occurs via the greater superficial petrosal nerve, which comes off at the geniculate ganglion.
  • Compare this to Frey’s Syndrome, which causes sweating while eating due to abnormal reinnervation of cutaneous sweat glands by parasympathetic salivary fibres from the facial nerve.

  1. Bogorad, F. A., and AUSTIN SECKERSEN. “The symptom of crocodile tears.” Journal of the History of Medicine and Allied Sciences 34.1 (1979): 74-79. ↩

  2. Modi, Pranav, and Tasneem Arsiwalla. “Crocodile Tears Syndrome.” (2018). ↩

Last updated October 06, 2022
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