Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left lower lobe opacity represents a prominent epicardial fat pad . Cardiac silhouette is at the upper limits of normal , stable . The aorta is slightly tortuous . Hilar contours are unremarkable . There is no pneumonia , pleural effusion , or pneumothorax . Small nodular opacities at the right apex are stable over multiple years , likely representing prior granulomatous disease .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .