Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left sided dual lumen catheter tip terminates within the proximal right atrium , unchanged . Mild to moderate cardiomegaly is similar . The aorta remains tortuous and diffusely calcified . Mild pulmonary edema is unchanged compared to the prior study . There is likely a small right pleural effusion , without evidence for pneumothorax . No acute osseous abnormalities detected .
    OUTPUT:
    
Mild pulmonary edema , not significantly changed from the prior exam with trace right pleural effusion .