Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single semi-upright portable chest radiograph demonstrates stable elevation of the right hemidiaphragm with adjacent atelectasis . Minimal opacification in the left lung base likely reflects atelectasis . No overt pulmonary edema identified . Cardiomediastinal and hilar contours are unremarkable . No pleural effusion is present .
    OUTPUT:
    
Stable right hemidiaphragm elevation . No pneumonia identified .