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Published on: February 13, 2026
Curative resection of rectal carcinoid tumors with transanal endoscopic microsurgery
Joost C Peerbooms1, Jaap L Simons, Geert W M Tetteroo
1Department of Surgery, IJsselland Hospital, Capelle aan den IJssel, The Netherlands.
Background:
Transanal endoscopic microsurgery is a minimally invasive technique for local resection of rectal tumors. Its place needs to be defined for resection of carcinoid tumors of the rectum.
Materials And Methods:
From 1998 to 2004, rectal carcinoid tumors were diagnosed in 5 patients. The diagnosis was suggested at biopsy in all patients. All tumors were resected full thickness with transanal endoscopic microsurgery. Data were obtained retrospectively from a review of hospital charts.
Results:
At the time of operation all tumors were small without clinical or biochemical signs of metastasis. All resected tumors were highly differentiated and had free margins without invasion into the submucosa. Operative times ranged from 15 to 35 minutes. Hospital stays ranged from 2 to 4 days. No morbidity or mortality was observed. Follow-up ranged from 3 to 75 months. No recurrences were observed.
Conclusion:
Transanal endoscopic microsurgery is an excellent technique for removal of carcinoid tumors of the rectum and even the distal part of the sigmoid, if the diameter is <1 cm without invasion of the rectal wall.
Insights
Transanal endoscopic microsurgery (TEM) is effective for removing rectal carcinoid tumors. This minimally invasive approach demonstrated no recurrence or complications in a small patient cohort.
Area of Science:
- Colorectal Surgery
- Surgical Oncology
- Minimally Invasive Surgery
Background:
- Transanal endoscopic microsurgery (TEM) is a minimally invasive technique for rectal tumor resection.
- The role of TEM in managing rectal carcinoid tumors requires further definition.
Purpose of the Study:
- To evaluate the efficacy and safety of TEM for rectal carcinoid tumor resection.
Main Methods:
- Retrospective review of 5 patients diagnosed with rectal carcinoid tumors between 1998 and 2004.
- All tumors were resected using the TEM technique.
Main Results:
- All resected tumors were small, well-differentiated, and without signs of metastasis.
- Operative times ranged from 15-35 minutes with hospital stays of 2-4 days.
- No morbidity or mortality was observed, with no recurrences during follow-up (3-75 months).
Conclusions:
- TEM is an excellent option for resecting rectal carcinoid tumors.
- The technique is suitable for tumors <1 cm without rectal wall invasion, including those in the distal sigmoid.
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