Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is moderate interstitial pulmonary edema . The patchy opacities within the lower lobes bilaterally may represent some aspect of alveolar edema . No focal consolidations to suggest pneumonia . Stable enlargement of the cardiomediastinal silhouette . No large pleural effusions . No pneumothorax .
    OUTPUT:
    
1 . Cardiomegaly with moderate interstitial pulmonary edema , consistent with CHF exacerbation . 2 . No large pleural effusions .