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Updated: Feb 22, 2026

Surgical Robot-Assisted Transanal Specimen Extraction Radical Sigmoidectomy Without an Auxiliary Abdominal Incision
Published on: June 13, 2025
Transanal endoscopic microsurgery for giant benign rectal tumours: is large size a contraindication?
Audrius Dulskas1, Alfredas Kilius2, Kestutis Petrulis2
1Department of General and Abdominal Surgery and Oncology, National Cancer Institute, 1 Santariskiu Str, LT-08406, Vilnius, Lithuania. audrius.dulskas@gmail.com.
Purpose:
The purpose of this study is to look at our early postoperative results, recurrence rates and need for further radical surgery in treating large (> 5 cm) rectal tumours by transanal endoscopic microsurgery (TEM).
Methods:
Patients who underwent TEM for rectal tumours greater than 5 cm were included. Tumour diameter was determined based on fresh specimen measurements. We recorded the demographics, operative details, final pathology, length of hospital stay, complications and recurrence rates.
Results:
Mean tumour size was 5.9 ± 1.5 cm. 68.4% of tumours (13/19) were in the middle part of the rectum. Three patients (15.8%) developed postoperative complications: two had postoperative bleeding (10.5%), one had wound dehiscence (5.3%). Three patients had involved margins (15.8%). After a median follow up of 25.2 months, there were two recurrences (10.5%). One patient developed rectal cancer 6 years after removal of rectal adenoma.
Conclusion:
TEM is feasible and safe for the treatment of giant benign rectal tumours. It may be an alternative method for proctectomy in selected patients.
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