Triple Fossa Metastasis of Prostate Cancer

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Abstract
The radiological appearance of prostate cancer metastasis to the central nervous system often mimics meningioma. The bony change of prostate cancer metastasis resembles the hyperostosis of meningioma because of its blastic rather than lytic nature. On computed tomographic (CT) scan, like meningioma, prostate cancer metastasis enhances homogeneously after the infusion of contrast material. Triple fossa (middle, temporal, and orbital fossae) involvement by a solitary mass without bony destruction is thought to be highly specific for meningiomas. We report a case demonstrating the CT findings typical for a triple fossa meningioma caused by prostate cancer metastasis.

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