Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal , and hilar contours appear unchanged . The heart is again enlarged but difficult to assess , owing to low lung volumes . Small bilateral pleural effusions are present , more conspicuous on the right , and there is mild - to - moderate but worsening interstitial process compared to the prior study including indistinctness of pulmonary vessels . The appearance is most consistent with pulmonary vascular congestion .
    OUTPUT:
    
Findings consistent with mild pulmonary edema .