Double Early Rectal Cancer Arising from Multiple Inflammatory Cloacogenic Polyps Resected by Endoscopic Submucosal Dissection

• Published in: Internal Medicine Vol. 60; no. 4; pp. 533 - 537
• Main Authors: Ochiai, Yorinari, Matsui, Akira, Ito, Shinji, Takazawa, Yutaka, Kikuchi, Daisuke, Hoteya, Shu
• Format: Journal Article
• Language: English
• Published: Japan The Japanese Society of Internal Medicine 15-02-2021; Japan Science and Technology Agency
• Subjects: Case Report; Colon; Colonoscopy; Endoscopic Mucosal Resection; endoscopic submucosal dissection; Endoscopy; Gastrointestinal Hemorrhage; Humans; Inflammation; inflammatory cloacogenic polyp; Internal medicine; Intestinal Polyps; Male; Middle Aged; mucosal prolapse syndrome; Polyps; rectal cancer; Rectal Neoplasms - surgery; Rectum; solitary rectal ulcer syndrome; solitary rectal ulcer syndrome; endoscopic submucosal dissection; inflammatory cloacogenic polyp; mucosal prolapse syndrome; rectal cancer
• ISSN: 0918-2918; 1349-7235
• DOI: 10.2169/internalmedicine.5686-20

A 45-year-old man visited our institution due to the onset of hematochezia. He had a previous episode nine years earlier and colonoscopy at that time revealed multiple polyps, which were consistent with inflammatory cloacogenic polyps (ICPs) on the dentate line. Colonoscopy was performed again and two of the ICPs had grown. Both lesions were pathologically diagnosed as adenocarcinomas based on biopsies. Endoscopic submucosal dissection (ESD) was performed and the two lesions were diagnosed as double well-differentiated adenocarcinomas arising from ICPs. To our knowledge, this is the first reported case of double early rectal cancer in ICPs, which were followed endoscopically and successfully resected with ESD.