Chapter: Abdomen (Read entire chapter)Subchapter: ObstructionDiagnosis: PneumatosisPneumatosis in transverse colon: air is seen within the bowel wall. You can differentiate intraluminal air from bowel wall air, if you see air within the dependent prortions of the bowel wall. Air rises - if it's within the bowel wall it can't! On supine plain films air in the bowel wall might also appear as speckled air lucencies. One etiology is bowel obstruction - as in this case. This patient has a small bowel obstruction.Incidental note is also made of bilateral large renal calculi.
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