Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Right upper lobe airspace consolidation is concerning for pneumonia . There is subtle retrocardiac opacity which may represent left lower lobe atelectasis versus pneumonia . Lung volumes are low limiting assessment . No large effusion or pneumothorax . The heart is enlarged within left ventricular configuration . The mediastinal contour is normal . Bony structures are intact .
    OUTPUT:
    
Right upper lobe pneumonia . Left lower lobe atelectasis versus pneumonia . Cardiomegaly .