Brain biopsies from different patients showing typical sarcoid granuloma (short arrows) with a Langerhans-type giant cell (long arrow) (H&E, original magnification.

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Presentation transcript:

Brain biopsies from different patients showing typical sarcoid granuloma (short arrows) with a Langerhans-type giant cell (long arrow) (H&E, original magnification ×20) (A), transmural granulomatous involvement of a meningeal vessel (short arrows, star repr... Brain biopsies from different patients showing typical sarcoid granuloma (short arrows) with a Langerhans-type giant cell (long arrow) (H&E, original magnification ×20) (A), transmural granulomatous involvement of a meningeal vessel (short arrows, star represents the residual vessel lumen) (H&E, original magnification ×20) (B), and granulomatous vessel wall involvement (long arrows) with fibrinoid necrosis (short arrows) (H&E, original magnification ×10) (C). G. Bathla et al. AJNR Am J Neuroradiol 2018;39:1194-1200 ©2018 by American Society of Neuroradiology