RESUMO -Análise de nove casos de cisto aracnóideo intracraniano operados no período de 1974 a 1995. Os procedimentos cirúrgicos consistiram de derivação cistoperitoneal em sete pacientes e craniotomia com membranectomia nos outros dois casos. Complicações pós-cirúrgicas, do tipo infecção bacteriana e falha no sistema de drenagem, ocorreram em três casos, as quais foram debeladas e corrigidas, respectivamente. Baseados em revisão de literatura, alguns aspectos fisiopatológicos, diagnósticos e terapêuticos são discutidos.PALAVRAS-CHAVE: cisto aracnóideo, derivação cistoperitoneal, craniotomia, membranectomia, mecanismo valvular, tomografia computadorizada, ressonância magnética, neuroendoscopia.
Intracranial arachnoid cysts: report of nine operated casesABSTRACT -Analysis of nine patients with intracranial arachnoid cysts surgically treated from 1974 to 1995. The treatment consisted of cystoperitoneal shunt in seven patients and craniotomy with excision of cyst membrane in the other two cases. After surgery, bacterial meningitis and failure shunt device were observed in three cases. Both the infectious process and the shunt device were respectively treated and corrected at once. It has been observed total clinical improvement in all nine cases. A review of the literature has been made and some pathophysiological, diagnostic and therapeutic aspects are discussed.