The Contribution of Computerized Axial Tomography to the Diagnosis of Cerebellar and Pontine Hematomas

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Abstract
Case histories are reported of seven patients in whom the diagnosis of cerebellar (four) or pontine hemorrhage (three) was made by computerized axial tomography (CT). In all of the patients except two the diagnosis, established on the basis of a space-occupying high absorption lesion, was proved by either operation or autopical for an intracerebral hematoma, i.e., the high absorption zone was transformed into an area of reduced density. It is concluded that CT is a highly reliable method for the diagnosis and location of posterior fossa hematomas. A CT syndrome, observed in four of the seven cases, is described consisting of a hydrocephalus with the tips of the posterior horns being filled with blood. This seems to be specific for a posterior fossa hematoma having penetrated into the fourth ventricle.

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