Malignant solitary fibrous tumors: voluminous invasive tumors of the pleura

Introduction Thoracic solitary fibrous tumors (SFTs) are usually pleural-based lesions and diagnosed incidentally. The authors, hereby, report two cases of symptomatic SFT of the pleura with locally aggressive potential. Case 1 A 63-year-old male patient presented with chief complaints of dyspnea at rest and thoracic pain. Computed tomography scan revealed a mass of the right visceral pleura with multiloculated pleural effusion. Microscopic examination with immunostaining of the resected mass confirmed the diagnosis of malignant SFT. Local recurrence occurred after 5 months. Case 2 A 32-year-old patient had a massive tumor of the left hemithorax, invading the descending aorta and thoracic vertebrae, causing a shifting of the heart and mediastinum. A needle transcutaneous biopsy confirmed the diagnosis of SFT. Considering the respiratory failure, surgical treatment was preceded by a general preparation. The patient died few days before the operation owing to respiratory distress. Conclusion This paper sustains the heterogeneity of these tumors. SFT of the pleura could have malignant potential at first presentation or in a young patient.

Abstract licence: CC BY-NC-SA

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