Synchronous abdominal and thoracic solitary fibrous tumour: a case report

Solitary fibrous tumours (SFT), described for the first time by Klemperer and Rabin in 1931, are uncommon mesenchymal tumours that have been known to mainly affect the pleura and mediastinum. More recently, solitary fibrous tumours affecting other anatomical sites are being increasingly reported. Clinically, these tumours are asymptomatic and are discovered incidentally. Diagnosis is established at pathology by positive staining for CD34. Their prognosis depends on complete surgical resection and lack of histological signs of malignancy. We report here the case of a 63-year-old woman with double localisation of malignant solitary fibrous tumour who underwent complete removal of her lesions. To the best of our knowledge, this observation is the first description of a primary solitary fibrous tumour totally asymptomatic but already metastatic.