This image was done in the upright position--look for air fluid levels to determine this. There is mild small bowel dilatation and also pneumatosis (air in the bowel wall). This can be benign or can indicate severe problems like ischemia.

It is normal to have air fluid levels (AFL) in several parts of the GI tract, including the stomach, duodenum and right colon (where the contents are relatively liquid). More than 3 or 4 AFLs should alert you to the possibility of a motility problem, which could include either obstruction or paralytic ileus. Air in the bowel wall (pneumatosis) can be a catastrophic sign of severe bowel ischemia, but is also sometimes seen in relatively asymptomatic patients. This patient's abdominal pain rapidly resolved without treatment, so his pneumatosis was of the benign type.Recognizing bowel wall air can be difficult, but look for air that is in small linear or bubbly collections, running along the edges and in the folds of bowel loops, and not rising to the highest point, as lumenal air should do. Pneumatosis is easier to identify on CT than on radiography.