Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well - expanded . Ill - defined opacities are seen in the left lower lung with obscuration of the left hemidiaphragm margin . A small left - sided pleural effusion is also present . The right lung again shows a bandlike opacity along its upper lobe unchanged from prior and compatible with fibrosis . There is no new opacity in the right lung . There is no right - sided effusion . No pneumothorax is identified . The heart is not enlarged .
    OUTPUT:
    
Findings compatible with left lower lobe pneumonia .