Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient has had prior median sternotomy with CABG . Coronary artery calcifications are stents are unchanged . A left pectoral dual lead pacemaker remains in place . The previous right suprahilar mass - like opacity which corresponded to a non-enhancing heterogeneously mediastinal lesion is no longer evident , suggesting that this was a now resolved hematoma . There is stable mammilation of the right hemidiaphragm . Mild cardiomegaly is unchanged . Bilateral pleural thickening and subsegmental atelectasis are unchanged . There is no new focal consolidations or pneumothorax . A small right pleural effusion has resolved .
    OUTPUT:
    
Presumed resolved right suprahilar mediastinal hematoma . Stable bibasilar subsegmental atelectasis with otherwise clear lungs . Resolved small right pleural effusion . Stable mild cardiomegaly .