Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate well - expanded and clear lungs . Cardiomediastinal silhouette including moderate cardiomegaly is unchanged . There is mild pulmonary edema and small bilateral pleural effusions as before . There is no pneumothorax .
    OUTPUT:
    
Chronic or recurrent biventricular congestive heart failure .