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Pachymeningeal enhancement in noninfectious granulomatosis with polyangiitis. (arrowheads, A, B). Diffuse pachymeningeal enhancement on MR imaging was complicated with chronic dural venous sinus thrombosis of the superior sagittal sinus (empty green box, C) and right transverse sinus (empty blue box, C) on an oblique view of CT venogram 3D reconstructions (C).
