Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Stable retrocardiac opacity , mild pulmonary edema , and small left pleural effusion . Otherwise , there is no evidence of new consolidations or pneumothoraces . The cardiomediastinal silhouette remains moderately enlarged but stable . The osseous structures are normal .
    OUTPUT:
    
Little change in comparison to prior study from ___ with persistent left retrocardiac opacity , mild pulmonary edema , and small left pleural effusion .