Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mild to moderately enlarged but unchanged . Mediastinal contour is unremarkable . There is mild pulmonary vascular engorgement with unchanged fullness of both hila . Streaky opacity in the retrocardiac region may reflect atelectasis . Small bilateral pleural effusions are noted . There is no pneumothorax . No acute osseous abnormalities demonstrated .
    OUTPUT:
    
Mild pulmonary vascular congestion and small bilateral pleural effusions .