Fig. 1From: GelPOINT single-port laparoscopy-assisted transanal minimum invasive surgery for low rectal cancer: a preliminary report on the use of the GOD VISION wireless smart glass-shaped monitora Colonoendoscopy image revealing a rectal tumor at the left wall of lower rectum. b Colonoendoscopic ultrasonic view of the tumor demonstrating the presence of a invasive tumor with a high echo located in the third layer (muscular propria) of the rectumBack to article page