Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Subsegmental atelectasis is seen in the lingula . Remainder of the lungs are clear without focal consolidation . No pleural effusion or pneumothorax is identified . No acute osseous abnormality is seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .