We report a case of secretory meningioma diagnosed in a 40-year-old woman. MRI revealed a 2.5-cm mass with the dural tail sign, and evidence of cerebral edema adjacent to the mass in the right frontal convexity. Crush cytology of the resected specimen showed tumor cell clusters arranged in sheets. The tumor cells had round nuclei, finely granular chromatin, and some cells showed PAS-positive intracytoplasmic inclusions (diastase resistant). Histologically and immunohistochemically, the tumor was confirmed to show the features of secretory meningioma. Besides clinical information, the characteristic cytologic features of secretory meningioma presented in this case may be helpful for the diagnosis.
