Figure 4.

Post-operative head MR performed 2 days after surgery—Axial T1-w (A), axial T2-w (B) and post-contrast T1-w (C) images show gross total resection of the mass, with a minimal residual nodule next to the confluence of sinuses. Pathological examination (D) reveals, at the periphery of the hemorrhage, a vascular lesion composed of anastomosing, often dilated, capillary vessels (HE staining, 100× magnification). 8-month MR images (E,F) show complete resection of the lesion, with complete re-expansion of the parietal lobe.