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  • Title: Case report: "auditory neuropathy" in a newborn caused by a cerebellopontine angle arachnoid cyst.
    Author: Boudewyns AN, Declau F, De Ridder D, Parizel PM, van den Ende J, Van de Heyning PH.
    Journal: Int J Pediatr Otorhinolaryngol; 2008 Jun; 72(6):905-9. PubMed ID: 18355927.
    Abstract:
    We present a 6-week-old girl, referred because of failed newborn hearing screening in the right ear. Click-evoked oto-acoustic emissions were present in both ears, auditory brainstem responses (ABR) were present in the left but totally absent in the right ear. A magnetic resonance imaging (MRI) study revealed a large arachnoid cyst in the right cerebellopontine angle (CPA) and a diagnosis of "auditory neuropathy/auditory dyssynchrony" was established. A microsurgical resection of the cyst wall and fenestration was performed by a retro sigmoid approach. This is the first case in the literature of auditory neuropathy (AN) in an infant caused by a cerebellopontine angle arachnoid cyst.
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