alexa Ossified Metaplastic Meningioma

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Ossified Metaplastic Meningioma

Metaplastic meningioma is a rare subtype of meningioma. By definition, the mesenchymal differentiation includes osseous, cartilaginous, lipomatous, myxoid or xanthomatous changes. Nonetheless, this kind of tumor is benign and is classified as WHO grade I. However, the morphologic changes in reported osseous meningioma vary from extensive distribution of psammomatous bodies within the tumor to the presence of mature bony trabeculae. The latter has to be distinguished from associated hyperostosis of adjacent skull, intraosseous meningioma, and periosteal osteoblastoma. Intratumoral hemorrhage of meningioma is another phenomenon rarely observed. We report a case of ossified meningioma with the presence of both rare features.

Citation: Tai HC, Chen CJ, Chen CM , Chen WL, Chen PY (2010) Ossifi ed Metaplastic Meningioma with Intratumoral Hemorrhage. J Cytol Histol 1:102


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