Fig. 2
On H&E staining (a × 100; b ×  200), the lesion was found to be composed of numerous calcified psammoma bodies (arrow), with conspicuous immature trabecular bone formation (asterisk). Additionally, a rich blood supply (arrowhead) was observed in the foci of the bone component. The meningothelial cells were inconspicuous and lacked mitotic activity and necrosis. On immunohistochemical staining (c–f, × 100), the cells were positive for epithelial membrane antigen (EMA, c), somatostatin receptor 2 (SSTR2, d), and vimentin (e), but negative for S100 (f)