Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy , CABG , and aortic valve replacement . Lung volumes are low . Moderate cardiomegaly is re - demonstrated . Calcified AP window lymph node is again noted . There is mild crowding of the bronchovascular structures , with mild pulmonary vascular engorgement , similar compared to the prior study . Small bilateral pleural effusions are slightly decreased compared to the prior study . There is no pneumothorax . No acute osseous abnormalities are present .
    OUTPUT:
    
Mild pulmonary vascular congestion and small bilateral pleural effusions , decreased from the prior study .