Solitary Fibrous Tumor of the Central Nervous System extending Supra/Infratentorially

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  • テント上下に進展したsolitary fibrous tumorの1例

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A solitary fibrous tumor (SFT) is a rare spindle-cell mesenchymal neoplasm, which frequently occurs in the pleural cavity and rarely in extrapleural sites. SFT of the central nervous system was first reported in 1996, and since then, more than 200 cases have been reported in the literature. We herein report a case of intracranial SFT extending supra/infratentorially. There are only ten similar cases reported in the literature.<br>  A 49-year-old female with a two-month history of disequilibrium was referred to our hospital. Contrast-enhanced magnetic resonance imaging (MRI) showed a right tentorial tumor extending supra/infratentorially, which was homogeneously enhanced. Right external carotid angiography showed intense tumor staining fed by the occipital artery. Under a preoperative diagnosis of tentorial meningioma, the tumor was removed with combined right suboccipital/occipital craniotomy after embolization of the feeding artery. The histopathological diagnosis was SFT. The patient’s postoperative course was uneventful, and her symptoms were completely resolved.<br>  Although intracranial SFT is poorly recognized and its preoperative diagnosis is still challenging, SFT should be included in the differential diagnosis of extra-axial tumors extending supra/infratentorially.

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