| Theme |
Invasive colorectal cancer current status and practical issues of depth 1,000μm |
| Title |
Diagnosis of the invasive depth of colorectal submucosal cancer using conventional endoscopy -- as for vertical invasion "length 1,000μm" |
| Author |
Hiroshi Kawano |
Division of Gastroenterology, Kurume University School of Medicine |
| Author |
Osamu Tsuruta |
Division of Gastroenterology, Kurume University School of Medicine / Division of Endoscopy, Department of Medicine, Kurume University School of Medicine |
| Author |
Yasuhiko Maeyama |
Division of Gastroenterology, Kurume University School of Medicine |
| Author |
Tetsuhiro Noda |
Division of Gastroenterology, Kurume University School of Medicine |
| Author |
Shuichiro Nagata |
Division of Gastroenterology, Kurume University School of Medicine |
| Author |
Keita Nakahara |
Division of Gastroenterology, Kurume University School of Medicine |
| Author |
Keiichi Mitsuyama |
Division of Gastroenterology, Kurume University School of Medicine |
| Author |
Jun Akiba |
Division of Pathology, Kurume University School of Medicine |
| Author |
Michio Sata |
Division of Gastroenterology, Kurume University School of Medicine |
| [ Summary ] |
It is important we diagnose the depth of invasion and observe the existence of findings such as expansive appearance, submucosal tumor like appearance at the edge of polypoid lesions, remarkable depression, or impaired extensibility at the circumference of lesions, when using conventional endoscopy. These findings are often seen in cancers with submucosal invasion deeper than 1,500μm. When cancer with submucosal invasion deeper than 1,500μm is defined as sm massive cancer, the accuracy of or differential diagnosis of SM scanty or SM massive cancer using conventional endoscopy is 75.3 % . On the other hand, those findings are not so often seen in cancers with submucosal invasion of 1,000μm. Therefore, we must diagnose the level of depth of those lesions using image enhanced endoscopy, pit pattern diagnosis, or endoscopic ultrasonography |