Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph obtained . Suture in the left mid lung is again noted reflecting old surgery . There is a stable pattern of widespread ground - glass opacity which likely reflects known interstitial lung disease . No significant change from prior exam allowing for slight differences in technique / lung volumes . Overall , cardiomediastinal silhouette is stable . Bony structures are intact .
    OUTPUT:
    
Diffuse parenchymal opacities within the lungs , likely reflecting interstitial lung disease .