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Philippe Voordecker, MD; Eric Brunko, PhD; Zegers de Beyl, MD

Arch Neurol. 1988;45(11):1272-1276.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

• The contribution of ipsilateral and contralateral auditory brain-stem structures to the generation of wave V of brain-stem auditory evoked potentials is a controversial subject. We describe two cases with an intrinsic brain-stem lesion that involved the lateral lemniscus unilaterally in the middle and upper pons. The focal nature of the auditory structures was confirmed by detailed neuropathologic data in one case and by magnetic resonance scans in the other one. In both cases, brain-stem auditory evoked potentials revealed the unilateral absence (case 1) or marked attenuation (case 2) of wave V on stimulation of the ear contralateral to the intrinsic pontine lesion. Findings in both cases strongly suggest that wave V is predominantly generated by pontine structures contralateral to the stimulated ear and that the integrity of the contralateral lateral lemniscus is essential. . . . [Full Text PDF of this Article]

Author Affiliations
From the Neurology Service, Hôpital Erasme, Brussels (Drs Voordecker and de Beyl); and Brain Research Unit, University of Brussels (Dr Brunko).

Footnotes
Accepted for publication Oct 6, 1987.

Reprint requests to Neurology Service, Hôpital Erasme, Route de Lennik 808, 1070 Brussels, Belgium (Dr Voordecker).

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