Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated and clear without consolidation , effusion , or edema . Nodular opacity projecting over the right lung base is compatible with a nipple shadow . Moderate cardiac enlargement is noted . There is tortuosity of the thoracic aorta . Median sternotomy wires are intact . Posterior cervicothoracic fixation hardware and bilateral humeral head hardware is noted . No acute osseous abnormalities . Old healed left lateral rib fractures are noted .
    OUTPUT:
    
Cardiomegaly without acute cardiopulmonary process .