1. The gasless mid-abdomen on this radiograph (A) may represent a pseudo-tumor sign (fluid-filled loops of dilated bowel), although this finding would be impossible to identify without knowing the CT results. Gas in the colon is often seen in closed-loop obstruction because the onset of obstruction is rapid and gut motility is diminished due to the severity of pain.
Source: Chapter II-1. Small Bowel Obstruction, Emergency Radiology: Case Studies
Citation: Schwartz DT. Emergency Radiology: Case Studies; 2008 Available at: Accessed: October 26, 2017
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