Malignant Fibrous Solitary Tumour of the Pleura Is Not All the Same: Evaluation of Risk Stratification Models in a Large Single Centre Series

Malignant solitary fibrous tumours of the pleura (mSFTP) are extremely rare diseases (<5% of all pleural neoplasms) with unpredictable behaviour. Surgery remains the standard of care for these tumours, however, estimating prognosis and planning follow-up remains challenging. Several risk stratification models have been proposed, but a classification with diagnostic and prognostic potential has not been yet well standardised. The aim of this study is to analyse the clinicopathological data of mSFTP to investigate their prognostic features and to compare the performance of three risk stratification models proposed in the literature.