Annals of Coloproctology

Original Article

Transanal Endoscopic Microsurgery for the Treatment of Well-Differentiated Rectal Neuroendocrine Tumors: Hyoung Ran Kim, Woo Yong Lee, Kyung Uk Jung, Hyuk Jun Chung, Chul Joong Kim, Hae-Ran Yun, Yong Beom Cho, Seong Hyeon Yun, Hee Cheol Kim, Ho-Kyung Chun; J Korean Soc Coloproctol. 2012;28(4):201-204. Published online August 31, 2012; DOI: https://doi.org/10.3393/jksc.2012.28.4.201

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Purpose

Recently, an increase in well-differentiated rectal neuroendocrine tumors (WRNETs) has been noted. We aimed to evaluate transanal endoscopic microsurgery (TEM) for the treatment of WRNETs.

Methods

Between December 1995 and August 2009, 109 patients with WRNETs underwent TEM. TEM was performed for patients with tumors sizes of up to 20 mm and without a lymphadenopathy. These patients had been referred from other clinics after having been diagnosed with WRNETs by using a colonoscopic biopsy; they had undergone a failed endoscopic submucosal dissection (ESD) or endoscopic mucosal resection (EMR) and exhibited an involved resection margin and remaining tumor after ESD or EMR, regardless of the distance from the anal verge. This study included 38 patients that had more than three years of follow-up.

Results

The mean age of the patients was 51.3 ± 11.9 years, the mean tumor size was 8.0 ± 3.9 mm, and no morbidity occurred. Thirty-five patients were asymptomatic. TEM was performed after a colonoscopic resection in 13 cases because of a positive resection margin, a residual tumor or a non-lifting lesion. Complete resections were performed in 37 patients; one patient with a positive margin was considered surgically complete. In one patient, liver metastasis and a recurrent mesorectal node occurred after five and 10 years, respectively.

Conclusion

TEM might provide an accessible and effective treatment either as an initial or as an adjunct after a colonoscopic resection for a WRNET.

Citations

Citations to this article as recorded by

Oncological outcomes according to the treatment modality based on the size of rectal neuroendocrine tumors: a single-center retrospective study
Jimin Son, In Ja Park, Dong-Hoon Yang, Jisup Kim, Kyoung-Jo Kim, Jeong-Sik Byeon, Seung Mo Hong, Young Il Kim, Jong Beom Kim, Seok-Byung Lim, Chang Sik Yu, Jin Cheon Kim
Surgical Endoscopy.2022; 36(4): 2445. CrossRef
Long-term outcomes of transanal endoscopic microsurgery for the treatment of rectal neuroendocrine tumors
Wei-Kun Shi, Rui Hou, Yun-Hao Li, Xiao-Yuan Qiu, Yu-Xin Liu, Bin Wu, Yi Xiao, Jiao-Lin Zhou, Guo-Le Lin
BMC Surgery.2022;[Epub] CrossRef
Non-conventional applications for transanal endoscopic microsurgery. A single center experience and a systematic review of literature
Rosita DE VINCENTI, Fabio CIANCHI, Francesco CORATTI
Minerva Surgery.2022;[Epub] CrossRef
Transanalis műtéti útmutató – második kiadás
Kálmán Almási, Szabolcs Ábrahám, József Baracs, Attila Bursics, Zoltán Jánó, Tamás Sztipits, Áron Szűts, Dezső Tóth, Attila Zaránd, Balázs Bánky
Orvosi Hetilap.2022; 163(Supplement): 3. CrossRef
Endoscopic submucosal dissection versus transanal local excision for rectal carcinoid: a comparative study
Fei-hu Yan, Zheng Lou, Shi-jie Hu, Xiao-dong Xu, Hao Wang, Han-tao Wang, Rong-gui Meng, Chuan-gang Fu, Wei Zhang, Jian He, En-da Yu
World Journal of Surgical Oncology.2016;[Epub] CrossRef
Efficacy and Safety of Endoscopic Resection Therapies for Rectal Carcinoid Tumors: A Meta-Analysis
Lei He, Tao Deng, Hesheng Luo
Yonsei Medical Journal.2015; 56(1): 72. CrossRef
Full-thickness excision using transanal endoscopic microsurgery for treatment of rectal neuroendocrine tumors
Wei-Jie Chen
World Journal of Gastroenterology.2015; 21(30): 9142. CrossRef
Current Issues Involving the Treatment of Small Rectal Carcinoid Tumors
Dae Kyung Sohn
Journal of the Korean Society of Coloproctology.2012; 28(4): 176. CrossRef

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