Legend T2W and FLAIR images show a round intraparenchymal lesion with slightly hyperintense T2 signal and some surrounding vasogenic edema.

Legend Pre-contrast T1W image demonstrates isointense T1 signal. Gradient echo images demonstrate a rim of dark signal. Post-contrast images reveal some peripheral enhancement.

Legend DWI shows increased signal (restricted diffusion from intact RBCs within clot). CT shows a corresponding hyperdense region. Angiography demonstrates an AVM with an early draining vein. Key words: mri ct angiography vascular hemorrhage

Brain Diagnosis: Hyperacute intracerebral hemorrhage - AV malformation

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