Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A ___- mm heterogenous nodular opacity seen on the lateral view just posterior to the sternum was not present on prior radiographs . The lungs are otherwise clear . The cardiac and mediastinal contours are normal . There are no pleural effusions . No pneumothorax is seen .
    OUTPUT:
    
New ___- mm nodular opacity seen on the lateral projection could be a focus of infection or a pulmonary nodule . If there is clinical concern for infection , recommend repeating chest radiographs after treatment . If there is no concern for infection , recommend a dedicated chest CT for further evaluation . Findings were discussed with Dr . ___ by Dr . ___ in person at 9 :39 a .m . on ___ .