Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal upright chest radiograph demonstrates interval repositioning or replacement of the nasogastric tube , which now terminates within the stomach . Lung volumes are slightly lower . Allowing for this , moderate cardiomegaly and mild pulmonary edema are unchanged . Previously noted bilateral pleural effusions are likely unchanged , although the left costophrenic angle is incompletely imaged and can not be fully evaluated . Residual contrast is again seen within the colon .
    OUTPUT:
    
1 . Nasogastric tube terminating within the stomach . 2 . Slightly lower lung volumes with unchanged moderate cardiomegaly and mild pulmonary edema .