Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are normal . Focal opacity in the right lower lobe suggests pneumonia . There is no pleural effusion . No pneumothorax . There is no central vascular congestion or overt pulmonary edema . Mediastinal and hilar contours are normal . Heart size is normal .
    OUTPUT:
    
1 . Right lower lobe opacity suggests pneumonia . 2 . Normal heart size without central vascular congestion or overt pulmonary edema .