Fig. 2From: Primary pulmonary meningioma mimicking lung metastatic tumor: a case reportHistological section of the tumor demonstrating spindle cells with a whorl pattern (a [20×] and b [40×]). On immunohistochemistry the tumor cells stained positive with VIM (c [20×]), EMA (d [20×]), PR (e [20×]) and CD 34 (f [20×])Back to article page