Enlarged vestibular aqueduct and Mondini Malformation: audiological, clinical, radiologic and genetic features

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OTOLOGY

Enlarged vestibular aqueduct and Mondini Malformation: audiological, clinical, radiologic and genetic features F. Forli1   · F. Lazzerini1 · G. Auletta3 · L. Bruschini1 · S. Berrettini1,2 Received: 28 May 2020 / Accepted: 28 August 2020 © The Author(s) 2020

Abstract Purpose  When referring to enlarged vestibular aqueduct (EVA) we should differentiate between nonsyndromic enlarged vestibular aqueduct (NSEVA) and Pendred Syndrome (PDS), a disease continuum associated with pathogenic sequence variants of Pendrin’s Gene (SLC26A4) in about half of the cases. The study was aimed to analyse the clinical and audiological features of a monocentric cohort of Caucasian patients with NSEVA/PDS, their genetic assessment and morphological inner ear features. Methods  We retrospectively reviewed the audiologic, genetic and anamnestic data of 66 patients with NSEVA/PDS followed by our audiology service. Results  SLC26A4 mutations was significantly correlated with the presence of PDS rather than NSEVA (p