| Theme | <Comprehensible explanation> "JGES guidelines for colorectal endoscopic submucosal dissection/endoscopic mucosal resection" | |
|---|---|---|
| Title | Definition and pathology of laterally spreading tumor (LST) | |
| Publish Date | 2015/09 | |
| Author | Yasuhiko Maeyama | Division of Gastroenterology, Department of Medicine, Kurume University / Department of Endoscopy, Center for Gastroenterology, Kurume University |
| Author | Osamu Tsuruta | Division of Gastroenterology, Department of Medicine, Kurume University / Department of Endoscopy, Center for Gastroenterology, Kurume University |
| Author | Tetsuhiro Noda | Division of Gastroenterology, Department of Medicine, Kurume University / Department of Endoscopy, Center for Gastroenterology, Kurume University |
| Author | Shuichiro Nagata | Division of Gastroenterology, Department of Medicine, Kurume University / Department of Endoscopy, Center for Gastroenterology, Kurume University |
| Author | Michita Mukasa | Division of Gastroenterology, Department of Medicine, Kurume University / Department of Endoscopy, Center for Gastroenterology, Kurume University |
| Author | Hiroaki Sumie | Division of Gastroenterology, Department of Medicine, Kurume University / Department of Endoscopy, Center for Gastroenterology, Kurume University |
| Author | Hiroshi Kawano | Department of Gastroenterology, St. Mary's Hospital |
| Author | Keiichi Mitsuyama | Division of Gastroenterology, Department of Medicine, Kurume University / Department of Endoscopy, Center for Gastroenterology, Kurume University |
| Author | Takuji Torimura | Division of Gastroenterology, Department of Medicine, Kurume University / Department of Endoscopy, Center for Gastroenterology, Kurume University |
| [ Summary ] | The term laterally spreading tumor (LST) was originally proposed by Kudo et al. to define colorectal tumors spreading laterally to greater than 10 mm in diameter. The term LST is now commonly used worldwide. However, the term LST does not apply to macroscopic carcinoma, which has a subclassification similar to that of superficial spreading tumors in esophageal and gastric carcinomas. This definition and representative colonoscopic images of LST have now been included in the eighth edition of the revised version of "Japanese Classification of Colorectal Carcinoma", published in July 2013. | |