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: 

 

Article information

rID: 42267
Synonyms or Alternate Spellings:

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