Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright study shows no interval widening or suspicious change and contours of the upper mediastinum . Taking into account AP technique , cardiac size is unchanged and no central pulmonary vascular congestion or focal parenchymal lung consolidation is seen . Small bilateral pleural effusions remain with slight increase on the right .
    OUTPUT:
    
No suspicious change in mediastinal contours . Slight interval increase in small right pleural effusion .