Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are no focal consolidations , pleural effusions , or pneumothorax in the bilateral lungs . The left major fissure is thickened status post thoracic surgery , which has remained stable since the ___ CT Chest . Left lower lobe post - surgical changes are best seen on the lateral view . The heart and mediastinum are within normal limits . No osseous abnormalities identified .
    OUTPUT:
    
No acute pulmonary process .