MICROSCOPIC DESCRIPTION:

The sections show a moderately cellular meningioma with attached dura. The tumor forms whorls. No sheeting arrangement is seen. The tumor cells have ovoid nuclei with no nuclear pleomorphism. Mitoses are inconspicuous. There is no necrosis. No brain parenchyma is seen. No evidence of atypical  or malignant change is identified.

DIAGNOSIS:

Meningioma (WHO Grade I).