Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are notable for mild left lower lobe atelectasis . No large pleural effusion although blunting of the posterior costophrenic angles could represent small effusions . No pneumothorax . Mild bilateral symmetric irregular apical pleural thickening is unchanged since prior examination . Heart size , mediastinal contour , and hila are unremarkable . Again noted are bilateral breast implants . Visualized osseous structures are unremarkable with mild multilevel degenerative changes .
    OUTPUT:
    
No acute cardiopulmonary process . Specifically , no pneumonia .