Computed tomography of the brain in subacute sclerosing panencephalitis

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Abstract
Twenty-four computed tomographic scans of 12 patients with confirmed subacute sclerosing panencephalitis were studied using standardized techiques of radiological assessment. Abnormalities encountered were of four types–s(1) lateral ventricular dilatation, (2) cerebral cortical atrophy and sylvian fissure widening, (3) low parenchymal attenuation, and (4) brainstem atrophy and cerebellar atrophy-and of varying degrees. The abnormalities correlated best with the stage and duration of disease, but not necessarily well with the patient's mental state. The fewest radiological abnormalities were encountered in the acute or early stages, whereas more signs of parenchymal disturbances in the form of low attenuations emerged during intermediate periods. Chronic periods were accompanied by atrophic changes in the form of cortical atrophy, ventricular dilatation, and brainstem cerebellar atrophy.