Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and show an improved linear opacity in the right middle lobe . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal . No pleural effusion or pneumothorax is present .
    OUTPUT:
    
No acute intrathoracic process . Please note that the solid nodules noted on the previous CT examination are too small to be characterized by chest radiography . A followup chest CT is recommended as noted in the previous report .