Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates slight increase in retrocardiac opacity , consistent with atelectasis or consolidation . The cardiomediastinal and hilar contours are unchanged . There is no pneumothorax or pleural effusion . Tiny clacified granuloma in the right base .
    OUTPUT:
    
Slight increase in retrocardiac opacity , consistent with atelectasis or consolidation . Stable cardiomediastinal contours .