Enhancing Cerebral Infarction Simulating Arteriovenous Malformation on Computed Tomography

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Abstract
In this report 3 cases are presented in which the enhancing region of infarction was not the typical gyral pattern seen on CT [computed tomography] and was misinterpreted as the vascular enhancement of an arteriovenous malformation (AVM). Clinical presentation of the patients, the time of the scan in relation to symptoms, the appearance on plain CT and the distribution and shape of the abnormal enhancement on contrast-enhanced CT are described. Appropriate technique and window settings are important in avoiding misdiagnosis. Correct differentiation of a cerebral infarction from an AVM may obviate cerebral angiography.