Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy . Left - sided ICD with single lead terminating in the right ventricle is seen noted . Heart size is mildly enlarged . Rounded calcified structure projecting over the left apex is compatible with a calcified left ventricular aneurysm . Mediastinal and hilar contours are unchanged . Small bilateral pleural effusions are present , left greater than right . Bibasilar airspace opacities may reflect atelectasis though infection is not excluded . No pneumothorax is seen and there is no pulmonary vascular congestion .
    OUTPUT:
    
Small bilateral pleural effusions with bibasilar airspace opacities , possibly reflecting atelectasis but infection can not be excluded .