Central hearing loss with a bilateral inferior colliculus lesion.
A case is presented of a 43-year-old man with bilateral lesions of the inferior colliculus (IC) due to central nervous system lymphoma. Our patient was found to have relatively normal pure-tone averages with severely reduced bilateral word recognition scores. This case illustrates that the presentation of a partial bilateral IC lesion may be of severely reduced word recognition accompanied by nearly normal pure-tone hearing.
Hoistad
Dick L
DL
Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Ill. 60611-3008, USA. t-hain@northwestern.edu
Hain
Timmothy C
TC
D000163:Acquired Immunodeficiency Syndrome / Q000150:complications; D000328:Adult; D001301:Audiometry, Pure-Tone; D001932:Brain Neoplasms / Q000150:complications / Q000473:pathology*; D006313:Hearing Loss, Central / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D007245:Inferior Colliculi / Q000473:pathology*; D008223:Lymphoma / Q000150:complications / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D012720:Severity of Illness Index