Citation, DOI, disclosures and article data
Citation:
Smith H, Normal postmortem changes in the gastrointestinal tract. Reference article, Radiopaedia.org (Accessed on 29 Nov 2023) https://doi.org/10.53347/rID-61536
Normal postmortem changes in the gastrointestinal tract refers to the normal changes that can be expected to be seen in the gastrointestinal tract on post-mortem imaging.
Radiographic features
CT
The following changes may be present in the abdomen and gastrointestinal tract 1:
- intraluminal fluid of a variety of densities can be expected from a variety sources 3 (e.g. food within the gastrointestinal tract, medications, oral contrast administered prior to death, hemorrhage)
- hyperdensity of the walls of the gastrointestinal tract 1
- intraluminal gas (as a result of gastrointestinal ischemia and injury during circulatory death 1)
- intraluminal gastric and intestinal gaseous dilation (both as a normal change; but this may also be compounded as a result of CPR or other resuscitative efforts 2)
- portal venous gas may be present 1
- intravascular gas and sedimentation in mesenteric vessels, the aorta and large veins can also be expected
- 1. Ishida M, Gonoi W, Okuma H, Shirota G, Shintani Y, Abe H, Takazawa Y, Fukayama M, Ohtomo K. Common Postmortem Computed Tomography Findings Following Atraumatic Death: Differentiation between Normal Postmortem Changes and Pathologic Lesions. (2015) Korean journal of radiology. 16 (4): 798-809. doi:10.3348/kjr.2015.16.4.798 - Pubmed
- 2. Shiotani S, Kohno M, Ohashi N, Yamazaki K, Nakayama H, Watanabe K. Postmortem computed tomographic (PMCT) demonstration of the relation between gastrointestinal (GI) distension and hepatic portal venous gas (HPVG). (2004) Radiation medicine. 22 (1): 25-9. Pubmed
- 3. Chou CK, Mak CW, Tzeng WS, Chang JM. CT of small bowel ischemia. (2004) Abdominal imaging. 29 (1): 18-22. doi:10.1007/s00261-003-0073-3 - Pubmed
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