Solitary fibrous tumor (hemangiopericytoma)

Discussion:

Solitary fibrous tumors of the dura are rare tumors of the meninges, often presenting as a large and locally aggressive dural mass, frequently extending through the skull vault. They are difficult to distinguish from the far more common meningioma, but are treated similarly with surgical resection with or without radiotherapy to reduce the risk of recurrence, which is high. 

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