Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy CABG . Left - sided pacer device is noted with leads terminating in the right atrium and right ventricle . Mild to moderate cardiomegaly is present . The aorta is slightly tortuous . There is mild pulmonary vascular congestion . Hilar contours are otherwise unremarkable . Small bilateral pleural effusions result in blunting of the costophrenic angles bilaterally . Patchy atelectasis is present in the lung bases . No pneumothorax is identified . No acute osseous abnormalities detected .
    OUTPUT:
    
Mild to moderate cardiomegaly with mild pulmonary vascular congestion and small bilateral pleural effusions .