Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with ___ , no definite change is detected . The cardiomediastinal silhouette is grossly unchanged . Sternotomy wires again noted . Platelike atelectasis at the left base with an elevated left hemidiaphragm is again noted , though with gas now seen beneath the left hemidiaphragm , with in the gastric fundus . No CHF or frank consolidation is identified . No gross effusion . Minimal blunting of both costophrenic angles posteriorly could be new . No displaced rib fractures are detected on these lung - technique films . Correlation with any specific site of symptoms and , if indicated , dedicated rib radiographs could help for further assessment . No pneumothorax is detected .
    OUTPUT:
    
1 . Possible slight blunting of both costophrenic angles posteriorly , which could be new . Otherwise , I doubt significant interval change . 2 . No displaced rib fracture detected . Please see comment above .