Early subacute infarct along the lateral ventricle, in a patient with extensive chronic small vessel white matter ischemic disease

A large lacunar infarct is seen in the white matter of the corona radiata, immediately adjacent to the left lateral ventricle. The infarct demonstrates both vasogenic edema, seen with abnormal high signal intensity on the T2-weighted scan, and cytotoxic edema, seen as restricted diffusion (low intensity) on the ADC map. Thus, the lesion is early subacute in time frame, which is defined as 1-7 days, with initial clinical symptoms in this instance 3 days prior to the MR exam.

Early subacute infarct along the lateral ventricle, in a patient with extensive chronic small vessel white matter ischemic disease

Part of the on-line supplement to Neuroradiology – The Essentials with MR and CT (© 2015)