Aplastic anaemia, recent bone marrow transplant. Vomiting and abdominal pain.
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The small bowel, except the duodenum, appears inflamed with mural thickening, mucosal and serosal hyperenhancement and intervening low density due to oedema. The mesentery is congested. The caecum and remainder of the large bowel appear relatively normal. No fluid collections and no perforation. No other abnormalities.
Small bowel inflammation can occur in the setting of neutropaenia, either primary in bone marrow failure or secondary to chemotherapy. It is more commonly known as neutropaenic enterocolitis, with a form localised to the caecum known as typhlitis.