Female, 27 years old, with new onset seizure. As on the prior examination, numerous small foci of susceptibility are evident predominantly within the corpus callosum, and to a lesser degree, in the periventricular white matter. Accounting for differences in image quality related to 3T technique on the present exam, there does not appear to have been a significant increase in the number or size of these lesions.The above-mentioned lesions are associated with neither edema nor mass effect. No evidence of restricted diffusion is seen. No acute intracranial hemorrhage is demonstrated. No pathologic parenchymal or extra-axial enhancement is detected. The ventricles are normal in size and morphology.
Redemonstrated are multiple small foci of microhemorrhage within the corpus callosum and, to a lesser degree, in the periventricular white matter. The nature of these findings is uncertain, but they are in any event chronic. No new or acute intracranial abnormalities are detected to account for the patient's symptoms.