Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views have been obtained with patient upright position . There is moderate cardiac enlargement . The configuration suggests a left ventricular prominence to the left and posteriorly . In addition , the thoracic aorta is moderately widened and elongated . No local aortic abnormal contours are identified . The pulmonary vasculature is not congested . No signs of acute infiltrates and the pleural spaces are free . No pneumothorax in the apical area . Skeletal structures grossly within normal limits . When comparison is made with the preceding portable chest examination of ___ , the that time existing local chest wall emphysema in the lower neck area has resolved . The previously present NG tube has been withdrawn . The retrocardiac area appears now unremarkable .
    OUTPUT:
    
Moderate cardiac enlargement mostly involving left ventricle . Consider possibility of previous myocardial injury of the left ventricular wall or aortic valve incompetence . Absence of significant pulmonary congestion .