A Difficult-to-diagnose Case of Sigmoid Mesocolon Endometriosis

Yuto Fukuda, Hideki Osawa, Keta TAKAYAMA, Yoshihito Ide, Nobutaka Hatanaka, Yoshio Yamasaki
In: Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) · 2020 · vol. 81(4) , pp. 714–718 · doi:10.3919/jjsa.81.714 · W3095827767
article OA: diamond CC0
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⚙ AI-generated summary by gemini-2.5-flash-lite, 2026-06-07 ⓘ

This case report describes a 73-year-old female with sigmoid mesocolon endometriosis, initially misdiagnosed as cholecystitis, requiring sigmoid colon resection during cholecystectomy due to atypical CT, MRI, and PET/CT findings.

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Abstract

症例は73歳，女性．腹痛を主訴に前医を受診し，胆嚢炎・胆管炎と診断され，内視鏡的逆行性胆管ドレナージにより軽快した．胆嚢摘出術を勧められたところ当院での手術を希望し，当科へ紹介受診となった．術前精査の腹部単純CTでS状結腸間膜に周囲脂肪織のひきつれを伴う結節を認めた．MRIでも同様の所見でPET/CTでFDGの集積を認めた．腸間膜カルチノイドなど悪性疾患の可能性を考慮して，腹腔鏡下胆嚢摘出術と同時に腹腔鏡下S状結腸切除術（D3郭清）を施行した．切除標本の病理学的検査でエストロゲン受容体・プロゲステロン受容体の発現が見られ，S状結腸間膜子宮内膜症の診断となった．子宮内膜症病変が腸間膜に発生することは非常に稀である．今回S状結腸間膜に生じた子宮内膜症の1例を経験したので，考察を加え報告する．

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Condition tags

endometriosis

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References (2)

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last seen: 2026-06-10T17:14:06.276822+00:00
License: CC0 · commercial use OK