CLINICAL ENCOUNTERS
BELLS PALSY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If the lesion is after the geniculate ganglion
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If the lesion is just after the stylomastoid foremen
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If the lesion is before the geniculate ganglion
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None of the above
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Detailed explanation-1: -The geniculate ganglion is a sensory ganglion of the facial nerve (CN VII). It contains the cell bodies of the fibers responsible for conducting taste sensation from the anterior two-thirds of the tongue.
Detailed explanation-2: -After synapsing on the geniculate ganglion, the facial nerve gives rise to the first branch; the greater petrosal nerve, which carries visceromotor parasympathetic fibers (GVE) to the lacrimal gland and GVA from the nasal cavity, paranasal sinuses and part of the soft palate.
Detailed explanation-3: -Ramsay Hunt syndrome type 2 is caused by reactivation of varicella zoster virus in the geniculate ganglion. Patient often presents with facial nerve paralysis leading to facial droop, dry eyes, dry mouth, and hearing loss.