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Hemorrhagic Transformation in an Infarcted Region

Susceptibility sequences SWI demonstrate diffuse hemorrhagic change within an area of previous Infarct. With corresponding diffusion DWI restriction in the right panel.

Stroke Mimics - This was a Tumor!

Stroke Mimic - Not every hypoattenuation on CT is indicative of acute stroke. Given the preservation of cortical gray white in the insula, and in fact cortical expansion, this was a tumor with underlying vasogenic edema producing this appearance.