metaplastic meningioma
Metaplastic meningiomas are uncommon histological variants of benign (WHO grade I) meningiomas, characterized by tumor cells sharing the characteristics of tissues from other parts of the body.
As one would expect their imaging appearances are dependent on the type of tissue they express. Thus osseous meningiomas resemble mature bone, complete with bone marrow whereas lipomatous meningiomas contain areas of fat. As such they are discussed separately.
They are named according to the cell type that they resemble, and include:
- cartilaginous meningioma
- lipomatous meningioma
- melanotic meningioma
- myxoid meningioma
- osseous meningioma
- xanthomatous meningioma
Siehe auch:
Assoziationen und Differentialdiagnosen zu metaplastic meningioma: