Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Since the prior exam , there has been development of pulmonary vascular congestion and mild to moderate pulmonary edema . A small right pleural effusion is increased from prior . Heart size is unchanged appearing stably prominent . Mediastinal prominence likely reflects differences in technique . Bony structures are intact .
    OUTPUT:
    
Interval development of pulmonary edema and small right pleural effusion .