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Figure 1: Magnetic resonance imaging at the time of presentation [Axial T2 FLAIR, Sagittal T2W, post-contrast, Axial and Coronal images, and magnetic resonance (MR) Venography] shows perilesional edema with enhancing lesion in the right frontal lobe, suggestive of metastasis (single arrow). Enhancing dural-based lesions are noted (double arrows) with invasion into the superior sagittal sinus (triple arrows). MR Venography shows non-visualized terminal portion of the superior sagittal sinus and torcular herophili (arrowhead) with prominent vein of Trolard and smaller collateral veins

Figure 1: Magnetic resonance imaging at the time of presentation [Axial T2 FLAIR, Sagittal T2W, post-contrast, Axial and Coronal images, and magnetic resonance (MR) Venography] shows perilesional edema with enhancing lesion in the right frontal lobe, suggestive of metastasis (single arrow). Enhancing dural-based lesions are noted (double arrows) with invasion into the superior sagittal sinus (triple arrows). MR Venography shows non-visualized terminal portion of the superior sagittal sinus and torcular herophili (arrowhead) with prominent vein of Trolard and smaller collateral veins