Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright radiograph demonstrates interval increase in the degree of pulmonary vascular congestion and interstitial edema . Increase in patchy infrahilar opacities may reflect evolving component of pulmonary edema versus pulmonary hemorrhage or consolidation . There is no evidence of pleural effusion or pneumothorax .
    OUTPUT:
    
Interval increase in the degree of pulmonary vascular congestion and interstitial edema .