Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are lower . The heart is normal in size but increased from ___ . The mediastinal and hilar contours are unremarkable . Lateral view shows a 14 mm wide retrosternal nodule at the level of the sternomanubrial joint . No pleural effusion , pneumothorax or focal airspace consolidation . The pulmonary vascularity is normal . Dense calcifications are seen within the aortic valve .
    OUTPUT:
    
1 . Normal heart size but increased from ___ . 2 . Possible aortic valve calcifications 3 . Possible retrosternal lung nodule ; CT of the chest without contrast is recommended . Findings sent to ED QA nurses at 7 :45 on ___ .