Galveston County Daily News, March 12, 2008 Dr. Gottumukkala Raju, director of endoscopy and co-director of the Center for Endoscopic Research, Training and Innovation in the Cancer Center at UTMB, presents the case for colonoscopy. "The greatest advantage of the colonoscopy is that if precancerous polyps are detected, they are usually removed immediately during the procedure," he wrote.