title: [Clinical features of delayed endolymphatic hydrops and intralabyrinthine schwannoma : An imaging-confirmed comparative case series. German version].
abstract: BACKGROUND
  The aim of this study was to compare the clinical history and the findings in audiovestibular function tests in patients suffering from intralabyrinthine schwannoma or delayed endolymphatic hydrops (DEH).
  
  
  METHODS
  Five patients diagnosed with intralabyrinthine schwannoma by magnetic resonance imaging (MRI) and five patients diagnosed with DEH by locally enhanced inner ear MRI (LEIM) were retrospectively studied.
  
  
  RESULTS
  All patients with intralabyrinthine schwannoma or DEH initially presented with hearing loss. Vertigo occurred in two patients with intralabyrinthine schwannoma and in all patients with DEH. While audiometry achieved poorer results for patients with intralabyrinthine schwannomas, vestibular function tests revealed normal results in about half of the patients in both groups.
  
  
  CONCLUSIONS
  Patients with intralabyrinthine schwannomas may present with clinical symptoms similar to patients suffering from other inner ear disorders like delayed endolymphatic hydrops and may obtain similar findings in audiovestibular function tests. High-resolution MR imaging with locally applied contrast agent may provide evidence of both underlying pathologies.
authors: Deutsches Schwindel- und Gleichgewichtszentrum, Klinikum der Universität München, Marchioninistr. 15, 81377, München, Deutschland. Claudia.Jerin@med.uni-muenchen.de.|Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Klinikum der Universität München, München, Deutschland. Claudia.Jerin@med.uni-muenchen.de.
authors: C
authors: C
authors: Jerin
authors: Deutsches Schwindel- und Gleichgewichtszentrum, Klinikum der Universität München, Marchioninistr. 15, 81377, München, Deutschland.|Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Klinikum der Universität München, München, Deutschland.
authors: E
authors: E
authors: Krause
authors: Institut für Klinische Radiologie, Klinikum der Universität München, München, Deutschland.
authors: B
authors: B
authors: Ertl-Wagner
authors: Deutsches Schwindel- und Gleichgewichtszentrum, Klinikum der Universität München, Marchioninistr. 15, 81377, München, Deutschland.|Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Klinikum der Universität München, München, Deutschland.
authors: R
authors: R
authors: Gürkov
mesh_terms: D057210:Delayed Diagnosis; D003937:Diagnosis, Differential; D018159:Endolymphatic Hydrops / Q000150:complications* / Q000175:diagnosis*; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D008297:Male; D009464:Neuroma, Acoustic / Q000150:complications* / Q000175:diagnosis*; D055815:Young Adult
keywords: Delayed endolymphatic hydrops; Intralabyrinthine schwannoma; Labyrinth; Sensorineural hearing loss; Tinnitus; Vertigo; Vestibular schwannoma