In Ramsay Hunt syndrome, all nerves are involved except

**Core Concept**
Ramsay Hunt syndrome is a rare neurological disorder characterized by the reactivation of varicella-zoster virus in the geniculate ganglion, leading to facial paralysis, ear pain, and other cranial nerve abnormalities. This condition is a form of herpes zoster oticus, affecting the facial nerve and other nearby nerves.

**Why the Correct Answer is Right**
The facial nerve (cranial nerve VII) is primarily involved in Ramsay Hunt syndrome, with symptoms including facial paralysis, weakness, or numbness. The geniculate ganglion, located within the facial nerve, is the site of varicella-zoster virus reactivation. The involvement of the facial nerve is a hallmark of Ramsay Hunt syndrome. Additionally, other nerves like the cochlear nerve (cranial nerve VIII) and the vestibulocochlear nerve can also be affected due to their proximity to the facial nerve.

**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect, as the facial nerve (cranial nerve VII) is indeed involved in Ramsay Hunt syndrome.
**Option B:** Incorrect, as the trigeminal nerve (cranial nerve V) can also be affected in Ramsay Hunt syndrome, although it is not as commonly involved as the facial nerve.
**Option C:** Incorrect, as the glossopharyngeal nerve (cranial nerve IX) is not typically involved in Ramsay Hunt syndrome.

**Clinical Pearl / High-Yield Fact**
It is essential to remember that Ramsay Hunt syndrome can mimic other conditions, such as Bell's palsy, making accurate diagnosis crucial for appropriate treatment.

**Correct Answer:** C