Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in sitting semi-upright position . Analysis is performed in direct comparison with the next preceding similar study of ___ . Moderate cardiac enlargement as before . During the latest interval , a right internal jugular approach wide - caliber central venous line has been placed , seen to reach the lower SVC just short of entering into the right atrium . The previously described diffuse pulmonary parenchymal densities in the entire right hemithorax are still present and have not changed significantly . Observe that the lateral pleural sinuses are free which speaks against significant pleural effusion . The left hemithorax pulmonary parenchymal densities are more marked in the upper lobe area resulting now in a rather discrete infiltrate of pneumonic character in this area . This density appears to have progressed moderately since the next preceding examination . The left lower lobe area and the retrocardiac space remain relatively free , and again there is no evidence of pleural effusion in the lateral pleural sinus . No pneumothorax is seen .
    OUTPUT:
    
Progression of local infiltrate in left upper lobe area , now having the appearance of a pneumonic infiltrate . Diffuse pulmonary changes in the right hemithorax rather unchanged . Plethoric appearance of pulmonary vasculature . No evidence of large pleural effusion on this portable single - view chest examination . The patient may be over hydrated , but it is unlikely that dehydration solves the described problems .