Differentiating between Hemorrhagic Infarct and Parenchymal Intracerebral Hemorrhage
Figure 4
55-year-old man presented with dense left hemiparesis one week after right carotid stenting. (a) Initial axial unenhanced CT shows a large area of low attenuation in the right middle cerebral artery territory. (b) axial DW-MR image 2 hours later confirms a large infarct in the striatocapsular region, including the right caudate head. (c) Axial unenhanced CT 12 hours later shows a large parenchyma hemorrhage within the wedge-shaped area of infarction, consistent with hemorrhagic transformation. The case demonstrates two features typical of hemorrhagic infarct: the involvement of the caudate head and the distribution of the oedema surrounding the stroke lesion following the affected arterial territory. Stage IIH d2 [1].