Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , mild pulmonary vascular congestion is new and moderate retrocardiac and left basilar atelectasis is increased . In addition , the left heart border is not well seen due to mild opacities , which may represent lingular pneumonia . The lung volumes remain low . Moderate to severe cardiomegaly is stable . No pneumothorax . Median sternotomy wires are intact and aligned .
    OUTPUT:
    
1 . Mild opacities obscure the left heart border , which may indicate a lingular pneumonia . 2 . Mild pulmonary congestion and moderate retrocardiac and left basilar atelectasis are increased since ___ .