Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are normal . Right - sided cardiac pacing device with dual leads following their expected course to the right atrium and ventricle , respectively . Rounded hyperdense nodule at the right lung base is consistent with calcified granuloma , as seen on prior CT from ___ . There is no central vascular congestion or overt pulmonary edema . There is no large effusion or pneumothorax . There is mild unfolding of the thoracic aorta with calcification at the aortic knob . Otherwise , mediastinal contours are unremarkable . Mild cardiomegaly is stable .
    OUTPUT:
    
No acute intrathoracic process . Specifically , except for mild unfolding of the thoracic aorta , mediastinal contours are unremarkable .