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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 21:328-330 (2 2000)
© 2000 American Society of Neuroradiology

ARTICLE

Reduced Size of the Cochlear Branch of the Vestibulocochlear Nerve in a Child with Sensorineural Hearing Loss

Susumu Furuta^,a, Masaki Ogura^a, Shuichi Higano^a, Shoki Takahashi^a and Tetsuaki Kawase^a

^a From the Departments of Diagnostic Radiology (S.F., S.H., S.T.) and Otolaryngology (M.O., T.K.), Tohoku University School of Medicine, Sendai, Japan.

Summary: 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.

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