Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette is mild to moderately enlarged . The aorta is calcified and tortuous . Slight increased interstitial markings bilaterally raise concern for mild interstitial edema . There is also blunting of the left costophrenic angle posteriorly concerning for small pleural effusion . It is difficult to exclude trace right pleural effusion . No pneumothorax is seen .
    OUTPUT:
    
Cardiomegaly , mild interstitial edema , and small left and possible trace right pleural effusions suggest component of CHF .