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Updated: May 17, 2026

Surgical Robot-Assisted Transanal Specimen Extraction Radical Sigmoidectomy Without an Auxiliary Abdominal Incision
Published on: June 13, 2025
Transanal minimally invasive surgery: an initial experience
Timothy Slack1, Shing Wong, Mark Muhlmann
1Prince of Wales Hospital, Sydney, New South Wales, Australia.
Background:
Transanal minimally invasive surgery (TAMIS) is a novel approach used for the resection of rectal lesions. The purpose of this study was to review our initial experience with TAMIS.
Methods:
Between March 2012 and May 2012, we collected clinical data on patients who underwent the TAMIS procedure. This included patient demographics, tumour characteristics, operative technique, histological results and post-operative outcomes.
Results:
Three patients successfully underwent TAMIS resection of rectal lesions. All tumours were tubulovillous adenomas with high-grade dysplasia, with one also having a small focus of adenocarcinoma. Clear margins were achieved in all cases. One case was complicated by a post-operative bleed, requiring a return to theatre.
Conclusions:
TAMIS is a feasible and cost-effective alternative to transanal endoscopic microsurgery for resection of rectal lesions. It may have a shorter learning curve, especially for laparoscopic surgeons already proficient in single-port procedures.
