Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views have been obtained with patient in upright position . There is moderate cardiac enlargement and the thoracic aorta is generally widened and elongated . Calcium deposits are seen in the wall , mostly at the level of the arch . The pulmonary vasculature demonstrates an upper zone redistribution pattern , but there is no sign of an advanced interstitial or alveolar edema . No evidence of acute infiltrates and the lateral pleural sinuses are free . In the apical area , thickened pleural structures are noted bilaterally and combined with old scar formations and irregular densities in the peripheral portions of the parenchyma in this territory . When comparison is made with the next previous examination of ___ , these changes have not undergone any difference in appearance anf represent old inactive specific scars . Comparison demonstrates on the other hand that the cardiac size has increased mildly and so has the upper zone redistribution pattern . Acute infiltrates are not present .
    OUTPUT:
    
Old stable , probably specific bilateral apical scar formations , moderate cardiac enlargement with mild degree of chronic CHF but no evidence of acute pulmonary infiltrates or pleural effusions .