A 59-YEAR-OLD white man was referred to our office with a 6-month history of 6 severe episodes of vertigo, each lasting 1.5 to 3 hours. At least 2 of these episodes were associated with vomiting. His medical history was significant for sudden hearing loss in the left ear 5 years earlier that was not associated with vertigo. He reported that he has had fluctuating tinnitus in the left ear since the hearing loss first occurred and has worn a CROS (contralateral routing of signals) hearing aid for the past 5 years. He denied any visual complaints, blood pressure problems, or facial numbness. He had no history or family history of neurofibromatosis.
Jeffrey S. Wolf, Douglas E. Mattox. Imaging Quiz Case 2. Arch Otolaryngol Head Neck Surg. 1999;125(1):107. doi: