Fig. 3
From: Tumor and tumorlike conditions of the pleura and juxtapleural region: review of imaging findings
Diagnosis: solitary fibrous tumor. Technique: standard chest radiography, contrast-enhanced chest CT and 18FDG-PET CT. Description: A 64-year-old man was referred for a chest radiograph as part of the investigations for gastro-intestinal complaints. Postero-anterior and lateral radiographs (a, b) show as incidental finding, a well-delineated mass (arrow) located posteriorly in the left lower lobe. Axial contrast-enhanced CT (c) in the mediastinal window setting shows a well-delineated pleural based heterogeneous mass with intralesional hypodense foci and areas of more prominent contrast enhancement. There is a change in location of the tumoral mass on the axial CT in the prone position (d), which was performed as part of a CT-guided biopsy. This change in location is an indirect sign suggestive of a pedunculated tumor. The lesion does not show high uptake on 18-F-FDG PET imaging (e). Imaging characteristics were suggestive of a solitary fibrous tumor. This was confirmed by histopathologic examination of the resected mass