Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains mildly enlarged with a left ventricular predominance . The aorta is unfolded and diffusely calcified , with the hilar contours appearing stable . The lungs are clear without evidence of pulmonary vascular engorgement . A trace left pleural effusion may be present , but no right pleural effusion is seen . No pneumothorax is identified . An inferior vena cava filter is noted within the abdomen . There are no acute osseous abnormalities .
    OUTPUT:
    
No radiographic evidence for pneumonia .