| Theme | Current Topics on Anorectal Disorders | |
|---|---|---|
| Title | Rectal Cancer : Diagnosis and Treatment | |
| Publish Date | 2005/09 | |
| Author | Kosuke Okamoto | Department of Surgery (Omori), Division of General and Gastroenterological Surgery, Toho University School of Medicine |
| Author | Tatsuo Teramoto | Department of Surgery (Omori), Division of General and Gastroenterological Surgery, Toho University School of Medicine |
| [ Summary ] | Due to the development of electronic colonoscopy, diagnosis and staging of rectal cancer has been enhanced. The number of treatment options has increased, e.g. transanal local excision, transsacral local excision, endoscopic mucosal resection, endoscopic submucosal dissection, transanal endoscopic surgery and laparoscopic operations. Preoperative staging with high accuracy is possible using spiral CTs and high spatial MRI imaging. Total mesorectal excision enabling maximum sparing of pelvic nerves is accepted as the standard operation for rectal cancer. Per anal intersphincteric rectal resection with direct coloanal anastomosis can be an alternative to abdominoperineal resection for lower rectal cancer. Meanwhile, perineoabdominal resection is indispensable as a minimally invasive surgical option. | |