Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube terminates approximately 4 .5 cm above the carina . A right - sided PICC line terminates at the cavoatrial junction . Single lead pacemaker / ICD device terminates in the right ventricle . Retrocardiac opacification has mildly improved but pulmonary edema appears not significantly changed .
    OUTPUT:
    
Persistent pulmonary edema . Improvement in left basilar opacification , probably improvement in atelectasis associated with a pleural effusion .