Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were obtained . The lungs are well expanded . Linear oblique opacity at the right base is compatible with atelectasis . There is a sharp triangular opacity along the right heart border . In addition , there is a focal sclerotic lesion overlying the proximal right clavicle . There is no consolidation , effusion , or pneumothorax .
    OUTPUT:
    
1 . Sclerotic lesion within the proximal right clavicle . 2 . Triangular right heart border may be due to prominent mediastinal fat or adhesion in the pleural space .