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Figure 1: Brain magnetic resonance imaging T2-weighted images showing dilated cortical vessels over the right frontal cortex (a, orange arrow). Susceptibility-weighted imaging showing widespread dilated cortical vessels and microbleeds along the brain sulci (b). Magnetic resonance imaging angiography disclosing bilateral thrombosis of sigmoid sinuses (c, orange arrows). Digital subtraction angiography evidencing multiple dural arteriovenous fistulas extended between the anterior portion of the superior sagittal sinus and branches of the right external carotid artery (d, white arrow). Postembolization digital subtraction angiography showing complete occlusion of dural arteriovenous fistulas (e, white arrow). No changes were observed in the widespread vessel dilation after treatment (f)

Figure 1: Brain magnetic resonance imaging T2-weighted images showing dilated cortical vessels over the right frontal cortex (a, orange arrow). Susceptibility-weighted imaging showing widespread dilated cortical vessels and microbleeds along the brain sulci (b). Magnetic resonance imaging angiography disclosing bilateral thrombosis of sigmoid sinuses (c, orange arrows). Digital subtraction angiography evidencing multiple dural arteriovenous fistulas extended between the anterior portion of the superior sagittal sinus and branches of the right external carotid artery (d, white arrow). Postembolization digital subtraction angiography showing complete occlusion of dural arteriovenous fistulas (e, white arrow). No changes were observed in the widespread vessel dilation after treatment (f)