Transanal surgery in the treatment of rectal tumors

In last two decades, transanal endoscopic microsurgery (TEM) in treatment of both benign and malignant tumor of rectum is actively developing. The aim of this review was to describe the current status of transanal interventions. Due to the low level of recurrens (mean about 6 %) TEM has become the method of choice for removal of rectal adenomas. Several studies have demonstrated the benefits of treatment TEM in cases of early T1 cancer compared to conventional resection. However, for more invasive adenocarcinomas performing TEM remains controversial, but it’s very promising method for the complex treatment. Just as transanal mesorectal exision in treatment of mid- and low rectal cancer as a new strategy – natural orifice transluminal surgery. However, it lack of evidence base and international experience in small series presented, so large randomized trials is needed.