Presentation
Acute abdominal pain after eating a roast chicken.
Patient Data
Peritoneal free gas is present in keeping with perforation. The sigmoid demonstrates surrounding fat stranding. A tubular osseous density structure is present in the sigmoid colon, suspicious for ingested foreign body.
Just distal to the foreign body there is a stenosing luminal mass, with stranding in the sigmoid mesocolon and tubular soft tissue extension beyond the colonic serosa.
Conclusion:
Sigmoid carcinoma with associated perforation, which is likely related to impaction of an ingested foreign body (fragment of animal bone).
Case Discussion
This is an unusual presentation of a sigmoid cancer, with an impacted foreign body (fragment of animal bone) resulting in perforation.
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