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Parenchymal lesions of neurosarcoidosis

Parenchymal lesions of neurosarcoidosis seen on MRI mimicking multiple sclerosis plaques. Label: A. Sagittal fluid-attenuated inversion recovery (FLAIR) image showing T2 hyperintense lesions involving the subcortical white matter and callososeptal interface. Some of these lesions mimic Dawson fingers, characteristic demyelinating plaques seen in multiple sclerosis. B. An axial FLAIR sequence showing ovoid T2 hyperintense lesions in juxtacortical, periventricular and deep white matter. C. T1 weighted image with gadolinium contrast illustrating some lesions with associated enhancement. (Courtesy of Dr. Surabhi Ranjan, Neuro-Oncology Branch, National Institutes of Health.)

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