PMC7451175_01
Head computed tomography angiogram at the time of presentation revealing a compact arteriovenous malformation in the left frontal lobe and three aneurysms in the distal anterior cerebral artery region. (a) Sagittal view, (b) coronal view.
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F1
Computed tomography (CT) angiogram [Figure 1] revealed a compact AVM in the left frontal lobe, three aneurysms in the DACA distribution, intraventricular hemorrhage involving the 3rd and 4th ventricles, venous drainage to large vein draining the superior sagittal sinus, and poor vascular blush in the territory of the left ACA, suggestive of an infarct.
Head computed tomography without contrast showing redemonstrations of subarachnoid hemorrhage from the proximal largest aneurysm, effaced basal cisterns and an interval increase in both hydrocephalus and cerebral edema. (a) Axial view, (b) sagittal view.
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F2
Head CT without contrast and CT angiogram revealed redemonstration of subarachnoid hemorrhage from the proximal largest aneurysm with intraventricular extension predominantly along the corpus callosum, with effaced basal cisterns and an interval increase in both hydrocephalus and cerebral edema [Figure 2].
Digital subtraction angiogram before (a) and after (b) embolization of the malformation.
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F3
The nidus and rest of the flow aneurysms were embolized using the onyx [Figure 3a and b].