Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Pulmonary edema and pulmonary venous congestion have significantly improved . Right basilar ill - defined hazy opacity appears to be coalescing . Superimposed infection can not be ruled out . The remainder of the lungs are clear . Bilateral small pleural effusion is unchanged . Cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
1 . Significant interval improvement of pulmonary edema and pulmonary venous congestion . 2 . Right lower lobe coalescing opacity concerning for superimposed pneumonia .