What is the most likely diagnosis? 
              
- 51 year-old woman with chest pain

                  
 
                  Enhanced Axial CT of Chest-Lung Window
            
              - Lipoma
- Pseudotumor
- Lymphoma
- Localized Fibrous Tumor of Pleura
- Hamartoma
Additional Image - Enhanced Axial CT of Chest-Mediastinal Window
            
             
            
               
              Additional Images
               
              
              Enhanced Axial CT of Chest-Mediastinal Window
               
              
             
            
              
                  Answer:
                  
               
              
                 4. Localized Fibrous Tumor of Pleura
              
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              Localized Fibrous Tumor of Pleura
               
              General Considerations
              
                - Rare, mesenchymal primary       tumors of the visceral pleura less common than diffuse malignant       mesothelioma
- Localized form is       less common and not related to asbestos exposure or smoking
- LFTP can be either       benign or malignant but is much more often benign (7:1)
- Usually patients are       >50 years old
- Most occur in the       inferior portions of the hemithoraces