Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP radiograph is obtained . Heart is normal size and cardiomediastinal contours are unchanged . Lungs are well expanded . Coarse pulmonary markings suggest chronic interstitial changes . There is increased pulmonary vascular congestion as compared to the prior study . Small left pleural effusion . Old rib fractures noted on the right . No pneumothorax .
    OUTPUT:
    
Increased mild pulmonary vascular congestion and small left pleural effusion .