case_images: PMC10883115_01
case_images: Axial brain MRI T1 (a) and T2WI (b), demonstrate a dural-based heterogeneously enhancing mass lesion in the right temporo-occipital region with marked surrounding vasogenic edema, consistent with brain metastasis.
case_images: 10.1177_2050313X241233190-fig1.jpg
case_images: PMC10883115_01_10.1177_2050313X241233190-fig1.jpg
case_images: fig1-2050313X241233190
case_images: A brain magnetic resonance imaging (MRI) showed a 3.8 cm contrast enhancing mass in the posterior aspect of the right temporal lobe with marked perilesional edema creating a mass effect on the right lateral ventricle (Figure 1).
case_images: (a and b) Axial T1 post-contrast images show patent dural venous sinuses without evidence of thrombosis.
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case_images: PMC10883115_01_10.1177_2050313X241233190-fig2.jpg
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case_images: Another follow-up brain MRI was performed in January 2021 and showed no recurrence of the brain lesion and patent dural venous sinuses without evidence of thrombosis (Figure 2).
case_images: (a and b) Axial T1 precontrast demonstrate hyperintense signal in the right transverse and sigmoid sinuses, and the proximal right internal jugular vein.
case_images: 10.1177_2050313X241233190-fig3.jpg
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case_images: However, in April 2021, she started to have increasing headache; a subsequent brain MRI showed features of right lateral sinus acute non-occlusive thrombosis with no parenchymal changes (Figures 3 and 4).
case_images: (a-c) axial T1 post-contrast images. (d) Sagittal T1 post-contrast image. There is a non-occlusive filling defect in the right transverse and sigmoid sinuses with extension to the proximal right internal jugular vein, consistent with non-occlusive right lateral sinus thrombosis.
case_images: 10.1177_2050313X241233190-fig4.jpg
case_images: PMC10883115_01_10.1177_2050313X241233190-fig4.jpg
case_images: fig4-2050313X241233190
case_images: However, in April 2021, she started to have increasing headache; a subsequent brain MRI showed features of right lateral sinus acute non-occlusive thrombosis with no parenchymal changes (Figures 3 and 4).