Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate to large bilateral pleural effusions with bilateral lower lobe collapse are stable . Previous moderate pulmonary edema has improved since ___ . There is heavy calcification in the mitral valve annulus and aortic valve . Moderate cardiomegaly is unchanged .
    OUTPUT:
    
Stable moderate to large bilateral pleural effusions with bilateral lower lobe collapse . Overall lung volume and mild pulmonary edema is slightly improved compared to ___