Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post midline sternotomy and CABG . Mild cardiomegaly , slight increased compared to the prior exam from ___ , and mediastinal widening are expected immediately post-operatively . Right - sided Swan - Ganz catheter sheath terminates in the upper SVC . There has been slight interval increase in mild bilateral pulmonary edema and mild bibasilar atelectasis . Small bilateral pleural effusions are persistent . There may be a tiny left apical pneumothorax . The visualized osseous structures are unremarkable .
    OUTPUT:
    
1 . Tiny left apical pneumothorax status post left - sided chest tube removal . 2 . Slight interval increase in bilateral mild pulmonary edema . 3 . Prominence of the cardiomediastinal contours , is expected immediately post-operatively . ___ were d / w Dr . ___ by Dr . ___ by phone at 1 : ___p on the day of the exam .