Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP upright portable view of the chest was obtained . There is obscuration of the left hemidiaphragm likely due to a pleural effusion and atelectasis . Perihilar opacities are likely due to mild - to - moderate pulmonary edema . Patient is status post median sternotomy and CABG . Single - lead left - sided AICD is seen with the lead extending to the expected position of the right atrium . The cardiac silhouette is top normal . There is mild elevation of the right hemidiaphragm . Aortic knob calcifications are seen . There is a rounded 8 - mm sclerotic focus in the left proximal humerus , which is nonspecific but could represent a bone island in the absence of known history of malignancy .
    OUTPUT:
    
Pulmonary edema . Left base retrocardiac opacity and obscuration of the left hemidiaphragm may be due to pleural effusion with atelectasis , underlying consolidation not excluded .