This retrospective cross section study enrolled 46 consecutive patients with unilateral sporadic VS who underwent a neurosurgical VS removal in the Neurosurgical Department of the University of Tuebingen, Germany between January 2008 and January 2015. The inclusion criteria covered an age range of 18–80 years old and the availability of preoperative high-resolution magnetic resonance imaging (MRI) T1 sequences, as the later is not part of the usual neuroradiological workup of VS patients. All patients received clinical evaluations of VS-associated symptoms (i.e. tinnitus and hearing impairment) prior to and three months after surgery. The principles of the surgical procedure were unchanged throughout all patients17. Patient characteristics are shown in Table Table1.1. 26/46 patients (57%) suffered from preoperative tinnitus which disappeared in 16/26 (62%) of the cases. This study was approved by the ethics committee of the Eberhard Karls University Tuebingen (registration no. 513/2017B02). All participants gave informed consent. All methods were performed in accordance with the guidelines and regulations.

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