Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The previously seen infrahilar peribronchial opacities appear slightly more prominent , either due to low lung volumes , possibly from splinting due to the new right - sided rib fractures , or due to incipient pneumonia . If there is no resolution in ___ weeks , would recommend CT for further evaluation . There is no pleural effusion , pneumothorax , or pulmonary edema . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
1 . Slightly more prominent peribronchial opacities , either due to low lung volumes or possibly incipient pneumonia . If there is no resolution within 1 - 2 weeks , would recommend CT for further evaluation .