Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . Bilateral perihilar opacities suggests central pulmonary vascular engorgement / moderate pulmonary vascular congestion with possible mild pulmonary edema . No large pleural effusion is seen although small pleural effusion is difficult to exclude , particularly on the left . No pneumothorax is seen . Cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Moderate pulmonary vascular congestion .