Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unchanged . Pulmonary vasculature is normal . Small bilateral pleural effusions are new in the interval . Focal opacity in the left lower lobe remains concerning for pneumonia and is relatively unchanged . Right lung remains clear . No pneumothorax is identified . There are no acute osseous abnormalities .
    OUTPUT:
    
Persistent left lower lobe pneumonia . New small bilateral pleural effusions .