The outcome of transanal endoscopic microsurgery and adjuvant radiotherapy in patients with high-risk T1 rectal cancer.

Introduction: Transanal endoscopic microsurgery (TEM) is considered the technique of choice for adenoma and low-risk T1 rectal cancer. The adequacy of such treatment for high-risk T1 tumours, however, is still controversial. The aim of the study is to evaluate our results with local excision of high-risk T1 cancers.