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Fig. 1 | Journal of Neuroinflammation

Fig. 1

From: Mast cells in meningiomas and brain inflammation

Fig. 1

Photomicrographs of tissue samples of dura and bone infiltrated by meningioma of the meningothelial type grade I obtained from a brain lesion following a left-left frontotemporal craniectomy. Mast cells were stained immunohistochemically for the presence of tryptase (brown color). a Dura showing the upper unaffected part and the lower part infiltrated meningioma cells (blue) and accumulated mast cells (brown); magnification = ×40. b Unaffected dura; magnification = ×100. c Bone infiltrated by meningioma cells showing a cluster of mast cells; magnification = ×100. d Mast cells surrounding clusters of meningioma cells infiltrating the dura; magnification = ×400. e One mast cell surrounded by meningioma cells; this mast cell does not appear to be degranulated. Bar = 15 μm

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