Hello from Boston! We are with Dr. Nelya Melnitchouk, who isAssistant Professor of Surgery, Harvard Medical School, She is Director of program in Peritoneal Surface Malignancy, HIPEC, at Brigham and Women's Hospital and Brigham and Women's Faulkner Hospital in Boston. Dr. Melnitchouk obtained her MD from Albert Einstein College of Medicine in New York. She completed her general surgery residency at Brigham and Women's Hospital at Harvard Medical School. As a resident she received the Rudolf Vollman Award for Excellence in teaching. Dr. Melnitchouk completed the colorectal surgery fellowship at the combined Memorial Sloan-Kettering Cancer Center and New York Hospital / Weill Cornell Medical Center colorectal surgery program in New York. Dr. Melnitchouk's research interests are in outcomes research and global health, colorectal cancer screening and surgery for colorectal cancer in low- to middle-income countries, colorectal cancer surgery and gastrointestinal complications in cardiac surgery patients, and sphincter-sparing surgery for rectal cancer. Her clinical interests also include minimally invasive surgery, laparoscopic, robotic and combined endoscopic laparoscopic surgery, sphincter preserving surgery in rectal cancer and in inflammatory bowel disorders. Dr. Melnitchouk, hello and welcome! Hi, Anton, thank you so much for coming here to discuss some of the issues in colorectal surgery. Let's start with colon cancer and rectal cancer. There are many treatment options available today - but how to choose the right treatment? What are the goals of preoperative staging in colon cancer and rectal cancer?