Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate moderate - to - severe cardiomegaly , similar in comparison with the prior AP radiograph , but increased since ___ . There is interval improvement in right lower lobe opacity since the prior study , however hazy opacification persists , difficult to discern whether new since the prior study or whether never fully resolved . Infection vs assymetric pulmonary edema . The cardiac silhouette remains quite enlarged , which may be due to cardiomyopathy or pericardial effusion . Coronary artery calcification / stenting is seen . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Interval improvement in right lower lobe opacity since the prior study , however hazy opacification persists , difficult to discern whether new since the prior study or whether never fully resolved . Infection vs assymetric pulmonary edema . Recommend follow - up to resolution and consider chest CT to exclude an underlying lesion as was also suggested on prior chest radiograph from ___ . Cardiac silhouette remains quite enlarged , which may be due to cardiomyopathy or pericardial effusion .