Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are unchanged , with the heart size appearing borderline enlarged . The pulmonary vasculature is normal . There is no pneumothorax . Patchy left basilar opacity is again noted , with a small left pleural effusion demonstrated . No right - sided pleural effusion is present . No acute osseous abnormalities demonstrated .
    OUTPUT:
    
Left basilar patchy opacity could reflect pneumonia in the correct clinical setting with small left pleural effusion .