Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear except for a stable tiny calcified granuloma in the lingula measuring 4 mm . There is no interstitial lung disease . Mediastinal and cardiac contours are normal . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
The exam is unchanged since ___ . There is no evidence of interstitial lung disease or pilmonary edema .