PMC7398312_01
: Noncontrast head CT demonstrated intraventricular hemorrhage (IVH) a Initial head CT showing diffuse IVH in the bilateral lateral ventricles. b Follow-up head CT showing stable IVH
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Fig1
At the outside hospital, a noncontrast head CT demonstrated IVH (Fig. 1a). CT 6 hours after her initial head CT was unchanged (Fig. 1b). CT angiogram of the brain did not demonstrate an underlying vascular abnormality.
MRI brain [fast low angle shot (FLASH) sequence] demonstrated intraventricular hemorrhage; no causative underlying vascular lesion was identified
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Fig2
An MRI of the brain performed on the fourth day of admission redemonstrated the IVH without any intraparenchymal component or underlying vascular malformation (Fig. 2).
Catheter angiography of left vertebral artery demonstrated vasoconstriction. The arrows point to multifocal areas of irregular narrowing of the distal branches of the left posterior cerebral artery
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Fig3
Subsequently, conventional catheter angiography on day five of admission was obtained which showed multifocal areas of irregular narrowing in the distal posterior cerebral artery branches and distal left middle cerebral artery consistent with a vasculopathy (Fig. 3).