An Unusual Cause of Cranial Dural Thickening

Figure 3

Histopathological examination from left frontal meningeal biopsy: (a) H&E stain demonstrating meningothelial whorls and associated chronic inflammation, (b) epithelial membrane antigen (EMA) stain confirming the meningothelial phenotype, and (c) H&E stain showing necrobiotic granulomata at the periphery of the lesion.

(a)

(b)

(c)