Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . In the left costophrenic angle is a new opacity peripherally . No other consolidations are seen . The cardiomediastinal and hilar contours are normal .
    OUTPUT:
    
Left lower lobe peripheral opacity may represent pulmonary infarct given history of pulmonary emboli or possibly small pleural effusion . Pneumonia could be considered in the right clinical scenario .