Neurinoma do acústico

Abstract

SINOPSE -Os neurinomas do acustico constituem-se em uma das patologias cujo diagnostico e mais exaustivamente perseguido pelos otoneurologistas. Representam 0 terceiro grupo mais freqiiente de tu mores intracranianos, perfazendo 10% das neoplasias dessa regiiio, A revisao da literatura relaciona da aos neurinomas do acustico mostra qu e atencao especial tem sido dada a esses tumores nas ultimas du as decades. Mesmo assim, ainda existe uma relacao inversamente proporcional entre a detectabilida de e a operabilidade dos neurinomas. 0 objetivo deste trabalho erevisar conceitos gerais referentes aos neurinomas do acustico, Procura-se enfatizar aspectos relacionados as suas formas de apresentacdo, assim como a importtincia do seu diagnostico precoce.Palavras-chave -Neur inomas do acustico, neuro -otologia, tumores do angulo ponto-cerebe1ar. ABSTRACT ACOUSTIC NEUROMA . 1-DEFINITIONS, HISTORY, ANATO MICAL ANDHISTOLOGICAL ASPECTS, CLINICALPRESENTA TION AND WORK UPAcoustic neuroma constitutes one of the patholo gies whose diagnosis is most exaustively searched by otoneurologists. They represent the third most frequent group of intracranial tumors, summing up 10% of this region neop lasms. An acoustic neuroma literature review shows that special attention has been given to the subject in the last two decades. Even so an inversely proportional relation still exists between how detectable and operable neuromas are. The obj ective of this paper is to revie w general concep ts referring to acoustic neuro m a. Emphasis is p laced on aspects related to its forms of presentation as well as the importance of its preco cious diagnosis.