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A 45-year-old man with developmental delay and bilateral facial VMs (not shown). A, Sagittal T1 MR imaging shows an ectatic torcula, which is also confirmed on axial T1 postcontrast MR imaging (B). C and D, Axial postcontrast MR imaging shows multiple extensive DVAs involving the left cerebral hemisphere. The patient also had polymicrogyria of the right hemisphere.
