Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is mildly enlarged and unchanged from previous radiograph . The mediastinal and hilar contours are normal . There is a small right pleural effusion , and no consolidation is seen . Mild vascular congestion is seen . A calcified subdiaphragmatic opacity , previously documented as a calcified splenic artery aneurysm , is unchanged from previous radiographs .
    OUTPUT:
    
Right pleural effusion and mild vascular congestion with unchanged mild cardiomegaly .