CTICasesSolitary Fibrous Tumor of the Pleura
Imaging findings
A 26-year-old patient has a chest radiograph showing a pleural-based or extrapleural mass with a smooth border against the lung and a possible incomplete border sign on its superior portion. The adjacent sternum is normal. On CT, the mass pushes into the lung parenchyma, but pulmonary vessels and bronchi appear unperturbed and are not pushed away, giving it a "lungy" appearance. It has a very sharp margin without infiltration.
Key takeaways
Distinguishing pleural-based masses from parenchymal lung lesions can be challenging, as imaging findings may conflict. Solitary fibrous tumors (SFT) typically arise from the visceral pleura and can grow inward into the lung rather than outward. They are usually benign and well-demarcated.
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