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| Chief Akio Shiomi, M.D., Ph.D. |
Senior Staff Shoichi Manabe, M.D. |
Senior Staff Tadahiro Kojima, M.D. |
Senior Staff Yusuke Tanaka, M.D. |
Senior Staff |
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| Yusuke Yatabe, M.D. |
Chief Resident Yukihiro Mori, M.D. |
Chief Resident Yusuke Takashima, M.D., Ph.D. |
Resident Gen Tsujio, M.D., Ph.D. |
Resident Kosaku Nihei, M.D. |
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| Resident Kioto Yokoyama, M.D. |
Resident Naoki Kobayashi, M.D. |
Resident Kenta Yao, M.D. |
Resident Shoma Yamamoto, M.D. |
Resident Shunsuke Miura, M.D. |
Large intestine, which follows small intestine in the digestive apparatus, is a 1.5 or 2-meter-long tube-like organ consisting of colon, rectum and anus, and cancer detected there is called “cancer of colon and rectum.” Sometimes it is called “colon cancer” or “rectum cancer” respectively, depending on the tumor location. The incidence rate for colon and rectum cancer starts increasing at fifties of age, and keeps increasing as the age number goes bigger. Also, the morbidity rate for the disease is the third biggest after prostate gland cancer and gastric cancer for male, and the second biggest after breast cancer for female (according to the data from the 2017 cancer morbidity survey based on the estimated figures for the national cancer registration by region) in Japan. It proves how crucial it is to detect the disease at early stages and to provide optimal therapies. Colon and rectum cancers can be treated by endoscopic therapy, surgical therapy, systemic chemotherapy, radiation therapy and symptomatic therapy, or combinations of these therapies, in accordance with the tumor location and progression. Among them, the Division of Colon and Rectal Surgery handles “surgical therapy (operation).”
Even though colon and rectum cancers at early stages can be thoroughly removed by endoscopic procedure, which is to resect a cancer with an endoscope inserted through anus, the cases not applicable for endoscopic surgery as well as advanced cancers need open abdominal operations, laparoscopic surgeries or operations assisted by the robotic surgical system (the da Vinci Surgical System) at the Division of Colon and Rectal Surgery. The division at the SCC is known as one of the top medical institutions for colon and rectum cancer treatment in Japan, with around 750 surgeries a year being performed, including 600 for primary colon and rectum cancers.
At this division, more than 90% of colon and rectum cancer operations are done with laparoscopy (including procedures assisted by the robotic surgical system). Compared with open abdominal surgeries, laparoscopic procedures have advantages for patients, which include less blood loss, smaller operative scars, less postoperative pains, being far less invasive and earlier social rehabilitations.
Robotic surgery is a laparoscopic procedure assisted by the robotic surgical system. It offers such advantages as high possibilities for complete cure and preservation of void and sexual functions, in addition to those offered with a laparoscopic procedure conventionally. The number of robotic surgeries performed at the Colon and Rectal Surgery, Shizuoka Cancer Center, is one of the biggest in Japan. So far, as many as 3,000 robotic surgeries have been performed as of December, 2025, yielding excellent outcomes.
In the conventional surgical method for rectum cancer, where the anus is located close, it will be removed together with the tumor mass and replaced by a permanent stoma. At this division of the SCC, a part of anal muscle (i.e., external anal sphincter muscle) can be preserved when the cancer is removed. This anus preservation procedure, or the intersphincteric resection (ISR), is being performed for more than 90% of the patients with rectum cancer here, which proves our efforts for preserving anus as much as possible. At the same time, the employing rate for temporary stoma, which is often required as a part of the anus preservation procedure, is quite low here and it’s one of the features of the therapy provided at this division.
For advanced colon and rectum cancer, it is often the case that the therapeutic decision is made for not providing a surgery when the cancer is found invading or metastasizing in the surrounding organs. However, we do not draw a line for a surgery, because it is the ultimate cancer therapy for a complete cure. We always pursue the possibility for performing a surgery, including an extended procedure resecting the tumor mass as well as the surrounding organs where the tumor is located in.
Colon and rectum cancers are likely to lower the quality of life of the patients after the surgeries, as they naturally involve the functional losses for urination, bowel movement and sexual activity, all of which will inevitably impact the daily life. Although the most crucial fact about a surgery for a colon and rectum cancer procedure is that it should guarantee the complete removal of the tumor mass, we always pursue ways to minimize the functional losses while providing a skillful cancer treatment. As we intend to confront the cancer by teaming up with our patients, we hope you will come to us without hesitation when you have any inquiries about the disease.
colon and rectal surgery
laparoscopic surgery
sphincter-preserving surgery
robotic surgery
Specialist and Supervisory Doctor Certified by the Japan Surgical Society
Councilor, Certified Doctor for Surgical Treatment for Gastroenterological Cancer, Specialist and Supervisory Doctor, Member of the Journal Editorial Committee, the Japanese Society of Gastroenterological Surgery
Councilor, Certified Specialist and Supervisory Doctor, the Japan Society of Coloproctology
General Clinical Oncologist Certified by the Japanese Board of Cancer Therapy
Councilor, Doctor with Certified Expertise, Certified Proctor for Robotic Surgery in Gastroenterology and General Surgery, Review Committee Member for Medical Teams, Review Committee Member for e-Learning, Glossary Review Committee Member, Educational Committee Member, the Japan Society for Endoscopic Surgery
Specialist and Robo-Doc Pilot with Domestic Class-A License and International Class-A License Certified by the Japan Robotic Surgery Society
The Japan Society of Clinical Oncology
The Japan Surgical Association
The Japanese Society of Stoma and Continence Rehabilitation
Representative for the SCC and Steering Committee Member, the JCOG Colon-and-Rectum Cancer Group
Representative for the SCC, Editorial Committee Member for the Guidelines and Facilitator, the Japanese Society for Cancer of the Colon and Rectum
Representative for the SCC and Facilitator, the Study Group for Postsurgical Follow-ups after Colorectum Surgery, the Japan Surgical Society
Representative for the SCC and Facilitator, the Tokai Study Group for Colorectum Surgeries
Representative for the SCC and Facilitator, the Shizuoka Study Group for Endoscopic Surgery
colon and rectal surgery
laparoscopic surgery
sphincter-preserving surgery
robotic surgery
Specialist Certified by the Japan Surgical Society
Certified Doctor for Surgical Treatment for Gastroenterological Cancer, Specialist and Supervisory Doctor, the Japanese Society of Gastroenterological Surgery
General Clinical Oncologist Certified by the Japanese Board of Cancer Therapy
Specialist and Robo-Doc Pilot with Domestic Class-A License Certified by the Japan Robotic Surgery Society
Certified Specialist and Supervisory Doctor, Councilor, the Japan Society of Coloproctology
Doctor with Certified Expertise, Certified Proctor for Robotic Surgery in Gastroenterology and General Surgery for Colon and Rectum, the Japan Society for Endoscopic Surgery
The Japan Surgical Association
colon and rectal surgery
laparoscopic surgery
sphincter-preserving surgery
robotic surgery
Specialist Certified by the Japan Surgical Society
Certified Doctor for Surgical Treatment for Gastroenterological Cancer, and Specialist, the Japanese Society of Gastroenterological Surgery
Specialist Certified by the Japan Society of Coloproctology
Doctor with Certified Expertise, the Japan Society for Endoscopic Surgery
The Japan Robotic Surgery Society
The Japan Society of Clinical Oncology
The Japan Surgical Association
colon and rectal surgery
laparoscopic surgery
sphincter-preserving surgery
robotic surgery
Specialist Certified by the Japan Surgical Society
Doctor for Surgical Treatment for Gastroenterological Cancer and Specialist Certified by the Japanese Society of Gastroenterological Surgery
The Japan Society of Coloproctology
Doctor with Certified Expertise, Certified Proctor Doctor for Robotic Surgery in Gastroenterology and General Surgery for Colon and Rectum, the Japan Society for Endoscopic Surgery
Specialist and Robo-Doc Pilot with Domestic Class-B License Certified by the Japan Robotic Surgery Society
The Japan Surgical Association
General Clinical Oncologist Certified by the Japanese Board of Cancer Therapy
colon and rectal surgery
laparoscopic surgery
sphincter-preserving surgery
robotic surgery
Specialist Certified by the Japan Surgical Society
Certified Doctor for Surgical Treatment for Gastroenterological Cancer, and Specialist, the Japanese Society of Gastroenterological Surgery
The Japan Society of Coloproctology
Doctor with Certified Expertise, Certified Proctor for Robotic Surgery in Gastroenterology and General Surgery for Colon and Rectum, the Japan Society for Endoscopic Surgery
The Japan Society of Clinical Oncology
The Japan Robotic Surgery Society
colon and rectal surgery
gastroenterological surgery
Specialist Certified by the Japan Surgical Society
Certified Doctor for Surgical Treatment for Gastroenterological Cancer, and Specialist, the Japanese Society of Gastroenterological Surgery
The Japan Society of Coloproctology
The Japan Society for Endoscopic Surgery
The Japan Robotic Surgery Society
The Japan Gastroenterological Endoscopy Society
The Japan Society of Clinical Oncology
The Japan Surgical Association
The Japanese Society for Abdominal Emergency Medicine
The Japanese Hernia Society
colon and rectal surgery
gastroenterological surgery
Specialist Certified by the Japan Surgical Society
Certified Doctor for Surgical Treatment for Gastroenterological Cancer, and Specialist, the Japanese Society of Gastroenterological Surgery
Specialist Certified by the Japan Society of Coloproctology
Doctor with Certified Expertise, Certified Proctor for Robotic Surgery in Gastroenterology and General Surgery for Colon and Rectum, the Japan Society for Endoscopic Surgery
The Japan Robotic Surgery Society
The Japan Surgical Association
The Japanese Gastroenterological Association
Doctor Certified by the Japanese Society for Abdominal Emergency Medicine
Registered Anesthesiologist Certified by the Japanese Society of Anesthesiologists
General Clinical Oncologist Certified by the Japanese Board of Cancer Therapy
colon and rectal surgery
gastroenterological surgery
Specialist Certified by the Japan Surgical Society
Certified Doctor for Surgical Treatment for Gastroenterological Cancer, and Specialist, the Japanese Society of Gastroenterological Surgery
The Japan Society of Coloproctology
The Japan Society for Endoscopic Surgery
The Japan Robotic Surgery
The Japan Surgical Association
The Japanese Cancer Association
colon and rectal surgery
gastroenterological surgery
Specialist Certified by the Japan Surgical Society
Certified Doctor for Surgical Treatment for Gastroenterological Cancer, and Specialist, the Japanese Society of Gastroenterological Surgery
Specialist Certified by the Japan Society of Coloproctology
Specialist Certified by the Japanese Society of Gastroenterology
Gastroenterologist Certified by the Japanese Gastroenterological Association
Certified Doctor, the Japanese Society for Abdominal Emergency Medicine
General Clinical Oncologist Certified by the Japanese Board of Cancer Therapy
The Japan Society for Endoscopic Surgery
The Japan Surgical Association
The Japanese College of Surgeons
The Japanese Gastric Cancer Association
The Japan Society of Clinical Oncology
The Japan Surgical Society
The Japanese Society of Gastroenterological Surgery
The Japan Society for Endoscopic Surgery
The Japan Surgical Association
The Japan Gastroenterological Endoscopy Society
gastroenterological surgery
Specialist Certified by the Japan Surgical Society
Certified Doctor for Surgical Treatment for Gastroenterological Cancer, and Specialist, the Japanese Society of Gastroenterological Surgery
The Japan Society of Coloproctology
The Japan Society for Endoscopic Surgery
The Japanese Society for Abdominal Emergency Medicine
The Japan Surgical Association
The Japanese Hernia Society
General Clinical Oncologist Certified by the Japanese Board of Cancer Therapy
gastroenterological surgery
Specialist Certified by the Japan Surgical Society
The Japanese Society of Gastroenterological Surgery
The Japan Society of Coloproctology
The Japan Society for Endoscopic Surgery
The Japan Gastroenterological Endoscopy Society
Specialist and Robo-Doc Pilot with Domestic Class-B License Certified by the Japan Robotic Surgery Society
gastroenterological surgery
Specialist Certified by the Japan Surgical Society
Certified Doctor for Surgical Treatment for Gastroenterological Cancer, and Specialist, the Japanese Society of Gastroenterological Surgery
The Japan Society of Coloproctology
The Japan Society for Endoscopic Surgery
gastroenterological surgery
Specialist Certified by the Japan Surgical Society
The Japanese Society of Gastroenterological Surgery
The Japan Society of Coloproctology
The Japan Society for Endoscopic Surgery
The Japan Society of Clinical Oncology
gastroenterological surgery
The Japan Surgical Society
The Japanese Society of Gastroenterological Surgery
The Japan Society of Coloproctology
The Japan Society for Endoscopic Surgery
The Japanese Society of Gastroenterology
The Japan Surgical Association
The Japan Society of Clinical Oncology
The Japan Gastroenterological Endoscopy Society
