This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Radiology
You are shown PA and lateral chest radiographs from a 53-year-old woman with mild dyspnea. Which one of the following is the MOST likely diagnosis? 
Select and explain. 
A. Mesothelioma, B. Empyema, C. Bronchogenic carcinoma, D. Solitary fibrous tumor
D: Solitary fibrous tumor
Answer: D: Solitary fibrous tumor 
Explanation: A. Incorrect. Mesothilioma appears as a rind of tissue that encircles the hemothorax. This features is not present in the provided images. B. Incorrect. Empyema demonstrates pleural effusion with air and or thickening of the pleura. These features are not present in the provided images. C. Incorrect. Bronchogenic carcinoma appears as nodule/mass within the lung parenchyma and is often spiculated. These features are not present in the provided images. D. Correct. Solitary fibrous tumor occurs in the pleural space and appears as a mass with smooth borders and incomplete sign which suggests that the finding is extraparenchymal in nature. These features are present in the provided images.