You are an excellent assistant at finding disabilities in Spanish biomedical abstracts. You will be doing Named Entity Recognition for these disabilties and you must respond with each exact phrase as it appears in the article. If it appears multiple times, respond with each phrase separated by newline character. If there are no disabilities, respond with NA.

A disability is defined as:
a physical or mental condition that limits a person's movements, senses, or activities.


Abstract:

Abstract The aim of this study is evaluate the unusual ways of initial presentation of the vestibular schwannomas . We performed a retrospective study of the patients who underwent resection of acoustic neuromas in our service , including for analysis only the cases which initial symptom was not the hearing loss . Tumour size , localization , clinical presentation , and age of the patients were considered . Nine patients present with atypical symptoms . The most common complain in this group were facial paresthesias ( 22 .2% ) . None of them complained about other otological symptoms . Asignificant group of patients did not present with the otological symptoms classically associated with vestibular schwannoma . Clinical knowledge of these kinds of symptoms may lead to earlier detection of these lesions .
hearing loss