Cerebellar Pilocytic Astrocytoma With Auditory Presentation

Abstract

An 8-year-old girl complained of decreased hearing and difficulty hearing from her right ear while on the telephone. Pure-tone and speech audiometry, immittance (tympanometry, acoustic reflex thresholds), auditory brainstem response, and transient click-evoked otoacoustic emissions were administered. The results were suggestive of a space-occupying lesion, and the patient was referred to a pediatric neurologist and neurosurgeon. A cerebellar pilocytic astrocytoma was found. The patient's audiologic profile is described, along with implications for pediatric neurologic evaluations. (J Child Neurol 2005;20:914—915).

Get full access to this article

View all access options for this article.

References

Faerber EN , Roman NV : Central nervous system tumors of childhood. Radiol Clin North Am 1997;35:1301—1328.

Gajjar A. , Sanford RA , Heideman R. , et al: Low-grade astrocytoma: A decade of experience at St. Jude Children's Research Hospital. J Clin Oncol 1997;15:2792—2799.

Naidich TP , Zimmerman RA : Primary brain tumors in children. Semin Roentgenol 1984;19:100—114.

Campbell JW , Pollack IF : Cerebellar astrocytomas in children. J Neurooncol 1996;28:223—231.

Kemp DT : Stimulated otoacoustic emissions from within the human auditory system . J Acoust Soc Am 1978;64:1386—1391.

Glattke TJ , Kujawa SG : Otoacoustic emissions. Am J Audiol 1991;1:29—40.

Lonsbury-Martin Bl , Whitehead ML , Martin GK : Clinical applications of otoacoustic emissions . J Speech Hear Res 1991;34:964—981.

Cane MA , Lutman ME , O'Donoghue GM: Transiently evoked otoacoustic emissions in patients with cerebellopontine angle tumors. Am J Otol 1994; 15: 207—216.

Jewett DL , Williston JS : Auditory evoked far field averaged from the scalp in humans. Brain 1971;94:681—696.