| Abstract: | Vestibular, audiological and X-ray findings on 25 surgically confirmed neurinoma cases were reviewed to determine the diagnostic sensitivity of each in the neurinoma test battery. A comprehensive, retrocochlear audiological and vestibular work-up was run. X-ray procedures included posterior fossa myelograms in all but one instance, with all of the patients complaining of some auditory difficulties; progressive hearing loss and tinnitus were the most common complaints with tinnitus as the earliest symptom. Thirty-six percent of the cases had a retrocochlear audiological pattern, while 60 percent manifested a mixed cochlear and retrocochlear pattern, the remaining 4 percent presented cochlear findings. A correlation between audiological findings and standard X-ray views revealed that 32 percent of the cases presented equivocal audiometric and negative X-ray findings, while myelogram were performed on 24 percent of the patients, and all but two. cases were positive. One of these cases revealed negative findings, and the other was equivocal. Our clinical findings indicated that a routine vestibular work-up provided the indication for a more progressive neurinoma evaluation. |
