Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild to moderate of the cardiomediastinal silhouette is stable but mild pulmonary edema is new . Small left pleural effusion . No focal consolidations to suggest pneumonia . No pneumothorax .
    OUTPUT:
    
CHF exacerbation with stable moderate , cardiomegaly , new mild interstitial pulmonary edema , and a small left pleural effusion , new since ___ .