Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Comparison is made with the next preceding similar study obtained on ___ in the emergency unit . The heart size remains unchanged as before . The thoracic aorta is moderately widened and elongated and shows some calcium deposits in the wall at the level of the arch . Slight deviation of the descending aorta to the left and posteriorly at the level of the left atrium supports the impression that there is at least moderate left atrial enlargement . The pulmonary vasculature demonstrates an upper zone re-distribution pattern and there exists some perivascular haze at the bases . Significant pleural effusion in either lateral or posterior pleural spaces can not be identified . Increased visibility of pulmonary fissures on the lateral view is supportive of the assumption of mild chronic CHF . Acute discrete pulmonary infiltrates can not be identified .
    OUTPUT:
    
Marked cardiac enlargement , absence of advanced pulmonary congestion , no evidence of pulmonary infiltrates or massive pleural effusion .