Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP semi-upright view of the chest provided . As seen on prior exam , an NG tube is seen terminating in the lower chest with contrast residua seen within the distal aspect of the gastric pull - through . In this patient with diaphragmatic hernias , better assessed on prior CT , air - filled loops of colon project over the left lung base . The mid - to - upper lungs remain grossly clear . No large effusions are detected . The heart size is difficult to assess due to subjacent hernia . No pneumothorax .
    OUTPUT:
    
Contrast residua within the lower portion of the gastric pull - through with NG tube terminating in this region . Large diaphragmatic hernia accounting for opacities projecting over the lower lungs , consisting of intra-abdominal fat and loops of bowel .