Theme |
Current Status of Magnifying Endoscopy |
Title |
Magnifying Colonoscopic Diagnosis of Invasion Depths Deeper than 1,000μm in Early Colorectal Carcinoma |
Author |
Shiro Oka |
Department of Endoscopy, Hiroshima University Hospital |
Author |
Shinji Tanaka |
Department of Endoscopy, Hiroshima University Hospital |
Author |
Iwao Kaneko |
Department of Medicine and Molecular Science, Division of Frontier Medical Science, Programs for Biomedical Research, Graduate School of Biomedical Science, Hiroshima University |
Author |
Ritsuo Mohri |
Department of Medicine and Molecular Science, Division of Frontier Medical Science, Programs for Biomedical Research, Graduate School of Biomedical Science, Hiroshima University |
Author |
Shigeto Yoshida |
Department of Medicine and Molecular Science, Division of Frontier Medical Science, Programs for Biomedical Research, Graduate School of Biomedical Science, Hiroshima University |
Author |
Kazuaki Chayama |
Department of Medicine and Molecular Science, Division of Frontier Medical Science, Programs for Biomedical Research, Graduate School of Biomedical Science, Hiroshima University |
[ Summary ] |
We assessed magnifying endoscopic findings for diagnosis of the depth of submucosal invasion deeper than 1,000μm in early colorectal carcinoma. With a classification based on the Hakone consensus, type V pit pattern is divived into VI (irregular) and VN (non-structure). In addition, we classified the type VI pit pattern into two groups ; VIA and VIB. Regardless of macroscopic type, the incidence of submucosal invaion deeper than 1,000μm with type VN pit pattern was significantly higher than with non-VN pit patterns. This classification was useful in diagnosing early colorectal carcinoma displaying invasions deeper than 1,000μm, subclassifying the type VI pit pattern. |