Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is again noted . Lung volumes are low , likely exaggerating pulmonary vasculature which is mildly prominent . No focal consolidation or pneumothorax is detected . There is possibly a small left pleural effusion . An esophageal catheter is incompletely evaluated due to exposure . Sternal wires are noted .
    OUTPUT:
    
Low lung volumes with cardiomegaly and possible small left pleural effusion . Incomplete evaluation of esophageal catheter , which possibly terminates in the mid esophagus . Per discussion with Dr . ___ by Dr . ___ by telephone at 21 :02 on ___ , this tube may possibly be in place intentionally within the mid esophagus . If gastric placement is desired , advancing the tube is recommended if not contraindicated for this patient .