Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A frontal view of the chest was obtained portably . Low lung volumes results in bronchovascular crowding . An elliptical left perihilar mass - like opacity is not clearly seen on prior studies , although the patient was previously rotated on multiple priors . A chronic left pleural effusion with adjacent atelectasis is similar to the prior study allowing for lower lung volumes . There has been interval removal of the right PICC . Right basilar atelectasis persists . No right pleural effusion and no pneumothorax . Cardiac and mediastinal silhouettes are stable . The patient is status post CABG .
    OUTPUT:
    
1 . Elliptical left perihilar opacity is not clearly seen on prior studies . Recommend initial further evaluation with conventional PA and lateral radiographs and shallow oblique views of the chest . 2 . Chronic left effusion and atelectasis . Dr . ___ ___ the findings with Dr . ___ ( MICU Green resident ) by phone at 7 : 28 am on ___ .