Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear without focal consolidation , pleural effusion or pneumothorax . Heart size is normal . Calcified left mediastinal node and left upper lobe calcified nodule are unchanged , suggesting prior exposure to granulomatous disease . Mediastinal and hilar contours are normal .
    OUTPUT:
    
No pneumonia , edema , or pleural effusion .