Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are again seen . Increased interstitial markings throughout the lungs are again seen with a lower lobe predominance , grossly unchanged from prior . Right chest wall port catheter tip projects over right atrium . Cardiomediastinal silhouette is stable . No acute osseous abnormality . Cervical fixation hardware is partially visualized .
    OUTPUT:
    
Bilateral parenchymal opacities which are similar compared to recent prior .