Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . There is diffuse interstitial abnormality with distortion suggesting underlying the fibrotic changes similar to prior . There is however no focal consolidation or effusion . The cardiomediastinal silhouette is stable . Surgical clips project over the neck . No acute osseous abnormality detected .
    OUTPUT:
    
No definite acute cardiopulmonary process .