Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Diffuse predominanlty peripheral interstitial reticular opacities are seen throughout the lung parenchyma in these wlung with relatively low lung volumes . The cardiac borders not clearly evaluated . No definite focal consolidation is identified , however an underlying process acute infectious process can not be entirely excluded . There is no large pleural effusion or pneumothorax . Surgical clips are seen in the right upper quadrant .
    OUTPUT:
    
Diffuse interstitial parenchymal opacity consistent with known fibrotic process . No definite focal consolidation is identified , however is difficult to exclude an underlying acute infectious process .