Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear without pleural or pericardial effusion . The cardiac silhouette is normal in size . Pectus deformity obscures the right heart border . The mediastinal contours are normal . The pulmonary vasculature is normal . In the left sixth anterior interspace there is a 9 mm nodular opacity .
    OUTPUT:
    
No acute chest abnormality . Shallow obliques are recommended for further evaluation of a possible nodule . Recommendations were discussed with Dr . ___ ___ the ___ at 7 : 45 am .