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Meningeal involvement in neurosarcoidosis. A, Dural-based extraaxial mass overlying the dorsal right frontal lobe (arrow) with multiple nonnecrotizing granulomas on biopsy in a patient with neurosarcoidosis. B, Sagittal gadolinium-enhanced image of severe neurosarcoidosis affecting the basal meninges. C, Axial view of the same patient in Panel B. D, Diffuse pachymeningeal enhancement in a patient with neurosarcoidosis presenting with confusion and hearing loss.
