Article

Computed tomography and magnetic resonance imaging findings in patients with oligodendrogliomas: clinical and pathological correlation

Radiologia Brasileira 06/2001; 34(3):145-149. DOI: 10.1590/S0100-39842001000300006

ABSTRACT Oligodendrogliomas são neoplasias do tecido neuroepitelial glial originárias de oligodendrócitos. São tumores infreqüentes, responsáveis por cerca de 4% a 7% das neoplasias primárias do cérebro, predominantemente supratentoriais. O presente trabalho consistiu na avaliação dos achados de imagem pré-operatória em tomografia computadorizada e ressonância magnética e correlação clínica e patológica, levando-se em consideração a presença de tumores puros ou mistos, com componente astrocitário e o seu grau de anaplasia. O aspecto mais freqüente foi o de lesão hipodensa na tomografia computadorizada ou com hipossinal em T1 e hipersinal em T2 na ressonância magnética, podendo ter componente cístico, com pouco edema ao redor, apresentando calcificações, quase sempre grosseiras, em dois terços dos casos. Reforço após contraste ocorre em 80% dos casos, na maioria discreto.

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May 16, 2014