Gram-negative sepsis in a background of neutropenia due to chemotherapy for acute myeloid leukaemia.
CT Abdomen and pelvis
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Thickening of the caecal walls associated with mild surrounding fat stranding. The caecal appendix is normal in appearance. Remainder bowel is unremarkable. There is no free fluid or free gas.
A few tiny hypoattenuating foci are identified scattered through the liver, nonspecific, most likely representing small cysts. Liver is otherwise unremarkable.
The spleen, pancreas, kidneys and adrenal glands are normal. There is no lymph node enlargement. No suspicious bone lesions are seen. The lung bases are clear.
Conclusion: Radiographic findings consistent with neutropenic colitis (typhlitis).
Classical presentation of neutropenic colitis on CT: focal caecal wall thickening and surrounding fat stranding in a patient treating leukaemia.