Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are compared to previous exam from ___ . Lung volumes are low . Increased interstitial markings seen diffusely throughout the lungs are similar compared to prior . There is no superimposed consolidation or effusion . Cardiomediastinal silhouette is within normal limits . Median sternotomy wires are noted . Osseous and soft tissue structures are notable for hypertrophic changes of the spine and surgical clips in the upper abdomen .
    OUTPUT:
    
No acute cardiopulmonary process . Diffusely increased interstitial markings as seen on prior , suggestive of chronic underlying lung disease .