Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small left pleural effusion is slightly improved . Mild pulmonary edema is improved . There is persistent pulmonary vascular redistribution . Cardiomegaly is severe . Calcified tubular structure overlying the cardiac silhouette on lateral view may be calcified or stented right coronary artery .
    OUTPUT:
    
Mild pulmonary edema and small left pleural effusion is improved compared to ___ .