Shu Aoyama, Akira Inoue, Yoshinori Kagawa, Takamichi Komori, Yuki Ozato, Yujiro Nishizawa, Tomoki Sugimoto, Hisateru Komatsu, Masashi Hirota, Yasuhiro Miyazaki, Akira Tomokuni, Masaaki Motoori, Hiroaki Fushimi, Gou Yamamoto, Kiwamu Akagi, Kazuhiro Iwase, Kazumasa Fujitani
BACKGROUND: APC and MUTYH are both well-known colorectal polyposis causative genes. However, 30-50% of colorectal adenomatous polyposis cases are classified as colonic adenomatous polyposis of unknown etiology and lack identifiable pathogenic variants. Although guidelines recommend total proctocolectomy for colonic adenomatous polyposis of unknown etiology with over 100 adenomas, evidence is lacking. This study presents a unique case of localized colonic adenomatous polyposis of unknown etiology with multiple adenocarcinomas, treated with hemicolectomy and regional lymph node dissection...
April 22, 2024: Surgical Case Reports