Chemoimmunotherapy-related enteritis resulting in a mechanical small bowel obstruction – A case report |
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Institution: | Department of Surgery, The Wollongong Hospital, Loftus Street, Wollongong, New South Wales, 2500, Australia |
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Abstract: | Introduction and importanceMechanical small bowel obstruction (SBO) is amongst the commonest diagnoses encountered in surgical departments. Although the aetiology is frequently post-surgical adhesions, the condition can arise in a virgin abdomen and we now know several of these cases do not require acute operative management. Here we report one such case where a small bowel obstruction transpired due to enteritis in the setting of chemoimmunotherapy with no prior abdominal surgery.Case presentationA 62 year old male presented to our department with 2 days of vomiting and obstipation. This is on a background of metastatic non-small cell lung cancer for which he was due for his 4th cycle of carboplatin, pemetrexed and pembrolizumab. Computed Tomography (CT) of the abdomen demonstrated a segment of thickened distal small bowel without any mass lesion, along with upstream dilatation. The findings were consistent with a mechanical SBO due to enteritis. Infective causes were excluded. The patient successfully recovered with non-operative intervention in the coming days.Clinical discussionEnteritis is an established adverse effect of various chemoimmunotherapy agents, though a case severe enough to produce a mechanical bowel obstruction is exceptionally rare. We demonstrate through this case that the condition may resolve through conservative measures.ConclusionThe diagnosis of chemoimmunotherapy-related enteritis producing an SBO although uncommon, should be considered in the relevant population. A non-operative approach may be appropriate under some circumstances. |
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Keywords: | Antineoplastic agents Immunotherapy Enteritis Intestinal obstruction Case report |
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