Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and two lateral radiographs of the chest were obtained . There are no prior studies for comparison . There is scarring and atelectasis at the right middle lobe and the cardiac area . No focal consolidation or nodule is present . The left hilus is prominent . There may be a small left effusion . There is eventration of the right hemidiaphragm . Cardiomegaly is mild .
    OUTPUT:
    
Right middle lobe opacity could be pneumonia or , less likely , scarring and atelectasis . Suggest follow - up attention to left hilar prominence .