Abstract
The diagnostic value of auditory brainstem response (ABR) for the differential diagnosis between acoustic neuromas (AN) and cochlear deafness (CD) was investigated in audiologically paired patients. Wave latencies, interpeak latencies and right and left latency difference of wave V were compared between AN and CD. It was concluded that the right and left latency difference of wave V was useful for the differential diagnosis between AN and CD, and that in almost every patient with AN, the incidence of waves of the same latency decreased inrespective of the degree of the pure tone average.