Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is peribronchial thickening localized to the lower lobes , though difficult to locate on the PA view , concerning for pneumonia and given the symptoms . Mildly enlarged heart size and prominent pulmonary vessels are likely physiologic . No pleural abnormalities are seen .
    OUTPUT:
    
Mild lower lobe pneumonia .