• Longyang Cheng, Hongbin Ni, and Yuxiang Dai.
• Department of Neurosurgery, Drum Tower Hospital Affiliated to the Medical School of Nanjing University, Nanjing, Jiangsu Province, China.
• Medicine (Baltimore). 2020 Dec 11; 99 (50): e23504.

RationaleSolitary fibrous tumor is a rare mesenchymal tumor. This case report describes the diagnosis and treatment of this tumor.Patient ConcernsA 31-year-old patient presented with epileptic seizure and headache 1 day prior to the visit and showed transient right limb hemiplegia for 6 hours that was resolved after intravenous infusion of mannitol.DiagnosesBased on imaging, the provisional diagnosis was meningioma. Postsurgical histopathological diagnosis confirmed solitary fibrous tumor.InterventionsThe lesion was totally excised. The patient improved remarkably after the operation, without any signs of associated limb movement disorder. No epileptic seizure was observed or reported after the operation.OutcomesPostoperation computed tomography (CT) scans showed no obvious residual tumor. The patient was followed up every 3 months for a total of 1 year following the operation, during which time the patient did not complain of headache or seizure.LessonsThe manifestation of solitary fibrous tumor (SFT) through imaging methods has certain specific findings,butimmunohistochemistry is still very important for confirming the diagnosis.

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