Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided for review . There is calcification of the thoracic aorta . The cardiac , mediastinal , and hilar contours are stable . There is increased right pleural effusion with opacification of the right lung base . While this opacification may represent pleural effusion and atelectasis , underlying consolidation or malignancy can not be excluded . The left lung is unremarkable . There is no pneumothorax .
    OUTPUT:
    
Increased right pleural effusion with opacification of the right base , which may represent a combination of pleural effusion and atelectasis . However , underlying consolidation or progression of malignancy can not be excluded .