Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is probable cardiomegaly , with prominence of the left ventricle . The aorta is calcified and tortuous . There is upper zone redistribution , without overt CHF . There is probable atelectasis at the left base . The absence of a lateral view it is difficult to completely exclude a focal infiltrate at the left base . Elsewhere , no focal infiltrate or consolidation is detected . No right effusion is detected . Doubt significant left effusion .
    OUTPUT:
    
1 . Probable cardiomegaly , with prominence of the left ventricle . 2 . Upper zone redistribution , without overt CHF . 3 . Atelectasis at the left base . No definite focal infiltrate at the left base . If clinically indicated , a lateral radiograph and / or comparison to prior radiographs could help to assess for subtle left base infiltrate . This would also allow for better assessment of the left ventricular contour , which is somewhat atypical on these views . 4 . Otherwise , no focal opacities suggest pneumonia . Comparison with any previous ( outside ) radiographs could help for further assessment .