Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Relatively low lung volumes persist . Again seen are bilateral interstitial opacities , right greater than left , with a relative peripheral distribution , in keeping with interstitial fibrosis . Findings are without significant interval change since the prior study . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable . Surgical hardware is partially imaged in the partially imaged cervical spine , image portion is grossly stable in position .
    OUTPUT:
    
No significant interval change . Interstitial fibrosis without definite acute cardiopulmonary process .