Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lateral view is slightly suboptimal due the patient 's overlying arm . There is blunting of the right costophrenic angle consistent with a small / trace right pleural effusion . The cardiac silhouette is top - normal to mildly enlarged . No overt pulmonary edema is seen . Aorta is calcified and tortuous . Right paratracheal opacity is stable likely representing prominent vascular structure .
    OUTPUT:
    
Small / trace right pleural effusion . No overt pulmonary edema . Persistent mild enlargement of the cardiac silhouette .