Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are stable . There is a new patchy opacity in the right lower lobe since prior studies . There is no pleural effusion or pneumothorax . The chest is hyperinflated .
    OUTPUT:
    
Developing right basilar opacity , which may represent an infectious process in the appropriate clinical setting , although atelectasis could also be considered .