| Series |
|
| Title |
A case of a Is+IIc polyp that deeply invaded the SM layer |
| Author |
Kenichi Mochizuki |
Digestive Disease Center, Showa University Northern Yokohama Hospital |
| Author |
Shin-ei Kudo |
Digestive Disease Center, Showa University Northern Yokohama Hospital |
| Author |
Yuichi Mori |
Digestive Disease Center, Showa University Northern Yokohama Hospital |
| Author |
Kenichi Takeda |
Digestive Disease Center, Showa University Northern Yokohama Hospital |
| Author |
Baba Toshiyuki |
Digestive Disease Center, Showa University Northern Yokohama Hospital |
| Author |
Fumio Ishida |
Digestive Disease Center, Showa University Northern Yokohama Hospital |
| [ Summary ] |
The patient was a man in his 60s. He underwent an endoscopic follow-up examination after endoscopic treatment. A reddish lesion with a diameter of 8 mm was observed in his descending colon. In magnified observation images after crystal violet staining, a region that exhibited VI altitude irregularity was observed surrounding the region that exhibited a VN pit pattern. The lesion was classified as EC-V3 in the ECV classification, based on endocytoscopic images and a narrow band image. The lesion was classified as EC 3b in the EC classification, based on staining with crystal violet and methylene blue. These findings suggest that the lesion was potentially SM deep invasive cancer. Histopathological findings revealed that the invasion distance from the surface layer was 3,088μm. This is an interesting case that is consistent with prediction of depth by EC observation. Here, we report this case with a review of the literature. |