Daniel R. Gold, DO, Departments of Neurology, Ophthalmology, Neurosurgery, Otolaryngology - Head & Neck Surgery, The Johns Hopkins School of Medicine
60-yo-man who suffered the fairly abrupt onset (over hours) of right lower motor neuron facial nerve palsy (7th cranial nerve), vertigo and deafness in the right ear (8th cranial nerve). Vesicles were noted on otoscopy, and herpes zoster infection (Ramsay Hunt) was diagnosed. Whereas many cases of "typical" vestibular neuritis are thought to involve the superior division of the vestibular nerve (mainly innervates anterior and horizontal canals, utricle) much more than the inferior division (posterior canal, saccule), in herpes zoster, there's commonly extensive damage to the 8th cranial nerve which leads to weakness of all three semicircular canals.
Spencer S. Eccles Health Sciences Library, University of Utah