Multiple cranial neuropathy due to varicella zoster virus reactivation without vesicular rash: a challenging diagnosis.

Ramsay Hunt syndrome is due to reactivation of varicella zoster virus (VZV) dormant in the geniculate ganglion of the facial nerve. The diagnosis is typically based on clinical triad of ipsilateral facial paralysis, otalgia, and vesicles in the auditory canal or the auricle. However, Ramsay Hunt syndrome may occur without skin eruption in up to one third of patients. Moreover, the involvement of other cranial nerves in addition to the facial nerve has been also reported. Herein, we reported a case report of a man who developed a multiple cranial neuropathy caused by VZV reactivation without skin vesicular eruption. The present case underlines a possible diagnostic challenge that clinicians may hit when facing a common disorder such as peripheral facial palsy. Indeed, clinicians must be aware that Ramsay Hunt syndrome may develop without skin vesicular eruption as well it may be complicated by multiple cranial nerve involvement. Antiviral therapy is effective in VZV reactivation for recovery of nerve function.