直腸狭窄を呈する胃シグネット環状細胞腺癌からの転移。稀な症例である

Metastasis From Gastric Signet Ring Cell Adenocarcinoma Presenting as a Rectosigmoid Stricture: A Rare Case.

• Shehriyar Mehershahi
• Nikhitha Mantri
• Haozhe Sun
• Danial Shaikh
• Harish Patel

抄録

腹水と便通の変化を呈して入院した55歳男性の1例を紹介する。大腸内視鏡検査の結果，直腸直腸狭窄部に長さ8cmの炎症性肥厚性粘膜を伴う重度の狭窄が認められた．組織学的にはシグネット環状細胞を伴う分化不良な腺癌を認めた．食道胃十二指腸鏡検査（EGD）を受けたが，胃のプラスチックス腺炎を示唆するものであった．顕微鏡検査では，時折シグネット環細胞を主原料とする低分化型腺癌が報告された．

We present the case of a 55-year-old man who was admitted with new abdominal ascites and change in stool caliber. The colonoscopy examination revealed a severe stricture with inflamed friable mucosa measuring 8 cm in length in the rectosigmoid colon. Histologically, poorly differentiated adenocarcinoma with signet ring cells was seen. The patient underwent esophagogastroduodenoscopy (EGD), which was suggestive of linitis plastica of the stomach. On microscopic examination, biopsy reported poorly differentiated adenocarcinoma with occasional signet ring cells as the primary source.

Copyright © 2020, Mehershahi et al.