Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded . There is bilateral diffuse interstitial thickening and hilar engorgement , right worse than left , as well as vascular upper re-distribution compatible with interstitial edema and vascular congestion . Mild to moderate cardiomegaly is unchanged . There is a small right - sided pleural effusion . No pneumothorax is identified .
    OUTPUT:
    
Moderate interstitial pulmonary edema and vascular congestion in the setting of mild to moderate cardiomegaly . No definite focal opacities concerning for pneumonia .