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©The Author(s) 2015. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Feb 28, 2015; 21(8): 2563-2567
Published online Feb 28, 2015. doi: 10.3748/wjg.v21.i8.2563
Published online Feb 28, 2015. doi: 10.3748/wjg.v21.i8.2563
Rectal tonsil: A case report and literature review
Joung Boom Hong, Hyung Wook Kim, Dae Hwan Kang, Cheol Woong Choi, Su Bum Park, Dong Jun Kim, Byoung Hoon Ji, Kyung Won Koh, Department of Internal Medicine, Pusan National University School of Medicine and Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 626-770, South Korea
Author contributions: Kim HW designed the research; Choi CW and Kim HW performed the research; Kang DH, Park SB, Kim DJ, Ji BH and Koh KW collected the data; Hong JB analyzed the data and wrote the paper.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Hyung Wook Kim, MD, PhD, Department of Internal Medicine, Pusan National University School of Medicine and Research institute for convergence of biomedical Science and Technology, Pusan National University Yangsan Hospital, Beomeo-ri, Mulgeum-up, Yangsan-si, Gyeongsangnam-do, Yangsan 626-770, South Korea. mdkhwook@gmail.com
Telephone: +82-51-3601535 Fax: +82-51-3601536
Received: August 25, 2014
Peer-review started: August 26, 2014
First decision: October 14, 2014
Revised: October 28, 2014
Accepted: November 19, 2014
Article in press: November 19, 2014
Published online: February 28, 2015
Peer-review started: August 26, 2014
First decision: October 14, 2014
Revised: October 28, 2014
Accepted: November 19, 2014
Article in press: November 19, 2014
Published online: February 28, 2015
Core Tip
Core tip: The rectal tonsil, a reactive proliferation of lymphoid tissue located in the rectum, is rare. Histologically, benign lymphoid hyperplasia of the rectum is usually characterized by large lymphoid follicles with active germinal centers and a narrow surrounding mantle zone and marginal zone. This lesion is benign, but must be differentiated from the polypoid type of mucosa-associated lymphoid tissue lymphomas.