Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . Patient is known to have lymphangiomyomatosis . Coarsened interstitial markings are compatible with known cystic lung disease . There is no superimposed consolidation to suggest pneumonia . No effusion or pneumothorax . Cardiomediastinal silhouette is normal . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Stable chronic lung disease compatible with ___ . No superimposed pneumonia .