Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An ET tube is present . The carina is not well delineated , but the ET tube probably lies approximately 2 .2 cm above the carina . An NG tube is present , tip beneath diaphragm , overlying gastric fundus . There are low inspiratory volumes . Heart size is borderline enlarged . There is upper zone redistribution , but doubt overt CHF . Compared with the prior film , however , there is new increased retrocardiac density and new blunting of the left costophrenic angle , consistent with left lower lobe collapse and / or consolidation . Some patchy opacity in the right infrahilar region is similar to the prior film .
    OUTPUT:
    
New left lower lobe collapse and / or consolidation .