Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to ___ , moderate cardiomegaly is unchanged . The aorta is tortuous and calcified , indicating atherosclerosis . There is an unchanged large hiatal hernia . The mediastinal and hilar contours are unchanged . The pulmonary vasculature is normal . Lungs are clear . There is blunting of the left costophrenic angle , concerning for a small effusion , unchanged . No right pleural effusion . No pneumothorax . There are no acute osseous abnormalities .
    OUTPUT:
    
Blunting of the left costophrenic angle , concerning for a small effusion , unchanged . No evidence of pneumonia as clinically questioned .