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 bilateral diaphragms worrisome for pleural effusions with overlying atelectasis , underlying consolidation is not entirely excluded . The patient is status post median sternotomy and CABG . No definite evidence of pneumothorax is seen . There is central pulmonary vascular engorgement . The cardiac silhouette is not optimally assessed due to the bibasilar opacities , although appears mildly enlarged . The mediastinum is not widened . The aortic knob calcification is seen . Chronic deformity at the right shoulder / proximal humerus is again seen .
    OUTPUT:
    
1 . Mediastinum is not widened . 2 . Obscuration of the diaphragms , raising concern for pleural effusions with overlying atelectasis , underlying consolidation is difficult to exclude . Mild pulmonary vascular engorgement .