Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . Midline sternotomy wires and mediastinal clips are again noted . The heart is moderately enlarged with an LV configuration . There is interstitial edema with scattered lower lung atelectasis . There is blunting of the left CP angle which could represent a small effusion . No pneumothorax . Bony structures appear grossly intact . Dense atherosclerosis of the abdominal and lower thoracic aorta noted .
    OUTPUT:
    
Cardiomegaly , interstitial edema , left lower lung atelectasis , and possible left effusion .