Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates low lung volumes . Consolidation at the right lung base is consistent with aspiration or superimposed infection . Heart size is normal . The cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Consolidation at the right lung base is consistent with aspiration or superimposed infection .