Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated . Obscuration of the right heart border by a hazy opacity is concerning for right middle lobe pneumonia . There is no pneumothorax , pleural effusion , or overt pulmonary edema . Mild pulmonary vascular congestion is present .
    OUTPUT:
    
Right middle lobe pneumonia .