Transanal minimally invasive surgery (TAMIS): new treatment for early rectal cancer and large rectal polyps—experience of an Italian center.

Transanal endoscopic microsurgery (TEM) is a minimally invasive technique for excision of rectal tumors that avoids conventional pelvic resectional surgery along with its risks and side effects. Although appealing, the associated cost and complex learning curve limit TEM use by colorectal surgeons. Transanal minimally invasive surgery (TAMIS) has emerged as an alternative to TEM.