Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded . There is overcrowding of the right cardiophrenic angle . Cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Overcrowding overlying the right cardiphrenic angle suggests aspiration versus atelectasis .