Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . There is considerably increased opacification in the posterior right lower hemithorax which is at least in part likely to reflect a pleural effusion but probably also substantial atelectasis or consolidation involving basilar parts of the right lower lobe . The right hemidiaphragm is modeately elevated . Patchy left basilar opacity is probably due minor atelectasis .
    OUTPUT:
    
Increased posterior right basilar opacities suggesting a pleural effusion with coinciding atelectasis versus consolidation .