Meningioma

Discussion:

The patient went on to have a craniotomy and excision of the mass. 

Histology

MACROSCOPIC DESCRIPTION:

A flattened ovoid soft dull yellow grey and hemorrhagic tumor 53x52x27mm with a sheet of fibrous tissue on one broad aspect 45x42mm and up to 2mm thick. 

MICROSCOPIC DESCRIPTION:

The sections show a moderately hypercellular meningioma. This has a well developed syncytial architecture. Occasional calcified psammoma bodies are also noted. Tumor cells show mild nuclear pleomorphism. A very occasional mitotic figure is identified. No areas of necrosis are seen and there is no evidence of brain invasion. Broad attachment to dural is noted. The dural margins are clear of tumor.

DIAGNOSIS: Meningioma (WHO Grade I).

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