Traumatic brainstem deafness with normal brainstem auditory evoked potentials.
A 48-year-old woman became totally deaf after a head injury. Magnetic resonance imaging showed bilateral contusions around the inferior colliculi and the brainstem auditory evoked potentials (BAEP) failed to show any abnormality. This case demonstrates that small, symmetrical, bilateral lesions around the inferior colliculi may cause deafness and may still be associated with a normal BAEP.
Hu
C J
CJ
Department of Neurology of Taipei Municipal Jen-Ai Hospital, Taiwan.
Chan
K Y
KY
Lin
T J
TJ
Hsiao
S H
SH
Chang
Y M
YM
Sung
S M
SM
D001306:Auditory Pathways / Q000503:physiopathology; D001924:Brain Concussion / Q000150:complications* / Q000503:physiopathology*; D001933:Brain Stem / Q000503:physiopathology*; D003638:Deafness / Q000209:etiology*; D016057:Evoked Potentials, Auditory, Brain Stem; D005260:Female; D006801:Humans; D007245:Inferior Colliculi / Q000503:physiopathology; D008875:Middle Aged