Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are mildly hypoinflated and clear . No pleural effusion or pneumothorax . Stable calcified hilar and mediastinal lymph nodes are consistent with prior granulomatous exposure . Heart size , mediastinal contour , and hila are unremarkable . The aorta is unfolded , unchanged since prior examination .
    OUTPUT:
    
1 . No acute cardiopulmonary process . No pneumonia . 2 . Evidence of prior granulomatous exposure with stable calcified hilar and mediastinal lymph nodes .