Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient upright position . Analysis is performed in direct comparison with the next preceding PA and lateral chest examination ___ ___ . The heart is enlarged . The configuration suggests a prominence of the left ventricular contour , but an additional enlargement of the left atrium is noted in the form of a typical double contour in the right heart shadow . Thoracic aorta is moderately widened and elongated but does not show any local contour abnormalities . The pulmonary vasculature demonstrates an upper zone redistribution pattern and there exists small amounts of bilateral pleural effusions in the posterior pleural sinuses as well as mostly on the right pleural sinus . Comparison is made with the next preceding examination . The , at that time observed pulmonary abnormalities believed to be chronic and possibly representing scar formations are again noted . There is however a new area of diffuse parenchymal density on the left lung base partially in retrocardiac location that appears to be new and represents possibly a pulmonary infiltrate . It is observed that on the preceding chest examination cardiac enlargement existed already as well as the upper zone redistribution pattern in the pulmonary circulation . The present examination shows however diffuse increased perivascular haze .
    OUTPUT:
    
CHF as well as new pulmonary parenchymal infiltrates on the left base suspicious for pneumonic infection . Followup examination is recommended .