PMC4727606_01
Computed tomography (CT) upon admission. Non-contrast axial scan reveals temporal hemorrhage surrounded by a large hypodense area.
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Urgent brain CT revealed temporal hemorrhage surrounded by an extensive hypodense area (Figure 1).
Magnetic resonance imaging (MRI) and magnetic resonance venography (MRV) upon admission showing: A) The lesion appears hyperintense surrounded by a large hypointense area on T1-weighted MRI, B) hypointense surrounded by a large hyperintense area on T2-weighted MRI, C) fluid-attenuated inversion recovery MRI. D) MRV shows complete occlusion of the left transverse and sigmoid sinuses.
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An MRI using a 3.0 T scanner revealed a hyperintense lesion surrounded by a large hypointense area on T1-weighted images (Figure 2A), and a hypointense lesion surrounded by a large hyperintense area on T2-weighted and fluid-attenuated inversion recovery (FLAIR) images (Figures 2B & 2C). Magnetic resonance venography (MRV) showed that the left transverse and sigmoid sinuses were completely occluded (Figure 2D).
Digital subtraction angiography (DSA) upon admission. Anteroposterior view reveals complete thrombosis of the left transverse and sigmoid sinuses as well as engorgement of the superficial veins in left hemisphere.
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A brain digital subtraction angiography (DSA) confirmed thrombosis of the left transverse and sigmoid sinuses with engorgement of the superficial veins in the left hemisphere (Figure 3), but was negative for vascular malformations such as aneurysm, arteriovenous malformation (AVM), and dural arteriovenous fistula.
Follow-up magnetic resonance venography (MRV) at 2 months after treatment. Axial view shows recanalization of the left transverse and sigmoid sinuses.
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Two months later, MRV showed recanalization of the left transverse and sigmoid sinuses (Figure 4), and remained asymptomatic in the following years.