Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Reticular interstitial pattern of opacification with areas of lucency appears similar compared to prior and is consistent with known pulmonary fibrosis . Subtle focal opacities may be obscured by this underlying process . There is no evidence for new large focal consolidation , pleural effusion , or pneumothorax . Cardiac and mediastinal contours are stable with a calcified tortuous aorta . Right - sided Port -A - Cath is in similar position . Degenerative changes noted at the acromioclavicular joints .
    OUTPUT:
    
Underlying pulmonary fibrosis without radiographically apparent acute cardiopulmonary process .