Reduced size of the cochlear branch of the vestibulocochlear nerve in a child with sensorineural hearing loss.
A 12-year-old female patient presented with unilateral sensorineural hearing loss. Distortion-product otoacoustic emission testing failed to reveal any measurable emissions in the affected side. MR imaging did not reveal labyrinthine malformation. Three-dimensional Fourier transformation-constructive interference in steady-state MR images showed a thin cochlear branch. We speculated that mumps infection or developmental malformation caused the unilateral sensorineural hearing loss.
Furuta
S
S
Department of Diagnostic Radiology, Tohoku University School of Medicine, Sendai, Japan.
Ogura
M
M
Higano
S
S
Takahashi
S
S
Kawase
T
T
D002648:Child; D003056:Cochlear Nerve / Q000002:abnormalities* / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000151:congenital* / Q000175:diagnosis; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D017084:Otoacoustic Emissions, Spontaneous / Q000502:physiology; D012680:Sensitivity and Specificity; D000159:Vestibulocochlear Nerve / Q000002:abnormalities* / Q000473:pathology