Cerebral arteriovenous malformation on non-contrast CT
Fall with headstrike.
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Arteriovenous malformation is noted within the right parietal lobe with enlarged cortical veins draining to superior sagittal and straight sinuses and to the right choroid venous plexus / right internal cerebral vien (i.e. both deep and superficial venous drainage).
No intra- or extra-axial collection or acute hemorrhage identified. Grey-white differentiation is preserved. Ventricular size, sulcal pattern and basal cisterns all appear normal. No bony abnormality demonstrated.
Right parietal AVM. No acute intracranial hemorrhage
AVM confirmed on MRI/MRA (images not available for upload).