FDG-PET/CT SUVmax Predicts Recurrence Risk of Resected Pleuropulmonary Solitary Fibrous Tumors

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Objectives: Risk stratification of pleuropulmonary solitary fibrous tumors (SFTs) is based on post-resection histopathologic scoring systems. We queried whether preoperative 18-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) maximum standardized uptake values (SUVmax) had prognostic value for recurrence or metastasis. Methods: Retrospective review of patients who underwent FDG-PET/CT before resection of SFT between January 2002 and June 2023. Independent review of slides by a pulmonary pathologist and radiologist review of FDG-PET/CT were performed. Statistical analyses included nonparametric tests for correlations, receiver-operating characteristic (ROC) curves, and Kaplan-Meier analysis. Results: = 0.002). SUVmax was not associated with overall survival in this small cohort. Conclusions: Tumor metabolic activity on FDG-PET/CT is predictive of SFT recurrence. Preoperative SUVmax correlates with known histopathologic high-risk features and validated risk scores. Preoperative FDG-PET/CT should be performed before SFT resection to assist in prognostication.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.