Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . In comparison to the prior radiographs from ___ , new widespread interstitial opacities are present , without focal consolidation , possibly representing a viral or atypical infection . Moderate tortuosity of the aorta is unchanged . There is no pneumothorax or pleural effusion . A small right midzone calcified granuloma is again seen .
    OUTPUT:
    
New diffuse interstitial opacities may represent pneumonia , possibly viral or atypical .