Turkish Journal of Gastroenterology
Original Article

Clinical impact of endoscopic ultrasonography for small rectal neuroendocrine tumors


Department of Internal Medicine, Kosin University College of Medicine, Busan, Republic of Korea

Turk J Gastroenterol 2014; 25: 657-660
DOI: 10.5152/tjg.2014.6647
Read: 1903 Downloads: 811 Published: 25 July 2019


Background/Aims: Endoscopic ultrasonography (EUS) is helpful for evaluating the depth of tumor invasion and lymph node metastasis of rectal neuroendocrine tumors (NETs). The aim of this study was to clarify the clinical impact of EUS for rectal NETs less than 10 mm in diameter.


Materials and Methods: : A total of 76 rectal NETs treated at our hospital between June 2006 and March 2013 were reviewed retrospectively. All lesions were analyzed with EUS to evaluate the depth of tumor invasion. The lesions were resected by endoscopic submucosal resection with band ligation (ESMR-L) or endoscopic submucosal dissection (ESD) and examined histologically.


Results: Endoscopic ultrasonography findings showed that all lesions were confined to the submucosa and revealed no adjacent lymph node metastasis. Seventy-five of the 76 lesions were completely resected by ESMR-L. One lesion was resected by ESD and the resected deep margin of the lesion was histologically positive. Only one lesion exhibited lymphatic invasion.



Conclusion: EUS may not be essential for diagnosis and treatment planning for rectal NETs less than 10 mm in size.

EISSN 2148-5607