Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Again seen are diffusely increased interstitial markings throughout the lungs bilaterally . There is no new confluent consolidation , effusion , or pneumothorax . Previously seen left basilar region of consolidation has essentially resolved . Lung volumes are appropriate . Cardiomediastinal silhouette is within normal limits . The anterior and posterior cervical spinal fixation hardware is partially visualized . No acute osseous abnormality identified .
    OUTPUT:
    
Persistent bilateral interstitial process without evidence of superimposed acute process .