Intradural-Extramedullary Solitary Fibrous TumorHemangiopericytoma with a Negative Result on Fluorodeoxyglucose-Positron Emission TomographyComputed Tomography

Abstract EN

Intradural-extramedullary solitary fibrous tumor/hemangiopericytoma (SFT/HPC) is a rare entity.

SFT/HPCs can recur after surgery, even if a benign histology of the tumor is observed.

We herein report a 68-year-old woman with intradural-extramedullary SFT/HPC.

On magnetic resonance imaging (MRI), the intradural-extramedullary mass was isointense on T1-weighted images and hypointense on T2-weighted images with heterogeneous gadolinium enhancement.

Whole-body fluorodeoxyglucose-positron emission tomography/computed tomography (18F-FDG-PET/CT) was also performed, showing no accumulation.

We performed surgery for the intradural-extramedullary mass, and the pathological findings of the resected specimen were a benign histology consistent with World Health Organization (WHO) grade I SFT/HPC.

She had no evidence of tumor recurrence three years after the surgery for intradural-extramedullary SFT/HPC.

18F-FDG-PET/CT before surgery may be useful for predicting the postoperative behavior of spinal SFT/HPCs.