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Preoperative MRI/MRV. A: Scout image showing a large calvarial mass arising from the vertex. B: Sagittal and coronal postcontrast T1-weighted MRI showing a 14 × 12 × 11–cm, extra-axial, transdiploic mass with internal hemorrhage, associated invasion into the SSS, and sulcal effacement of left frontal and bilateral parietal lobes with 1.3 cm of midline shift and uncal herniation. C: Coronal MRV showing a hypervascular mass.
