Meningioma with hemorrhagic necrosis


The tumor was resected: 

MICROSCOPIC DESCRIPTION: 1&2: Paraffin sections show fragments of a moderately hypercellular meningioma. This has a well developed syncytial architecture. Tumor cells show mild nuclear pleomorphism. No mitotic figures are identified. There are several areas of hemorrhagic infarction of tumor and there are numerous hemosiderin-filled macrophages indicating remote hemorrhage. No evidence of brain invasion is seen. Attachment to dura is noted. Dural margins are clear of tumor.

DIAGNOSIS: Right frontal brain tumor: Meningioma (WHO Grade I).