| Theme | Pit Pattern Classification in colorectal Lesion | |
|---|---|---|
| Title | Connection Between Pit Patterns and Histopathology | |
| Publish Date | 2008/10 | |
| Author | Shigeharu Hamatani | Department of Pathology, Showa University Northern Yokohama Hospital |
| Author | Tomokazu Hisayuki | First Department of Pathology, Showa University |
| Author | Kunihiko Wakamura | Digestive Disease Center, Showa University Northern Yokohama Hospital |
| Author | Nobunao Ikehara | Digestive Disease Center, Showa University Northern Yokohama Hospital |
| Author | Hiroshi Kashida | Digestive Disease Center, Showa University Northern Yokohama Hospital |
| Author | Shin-ei Kudo | Digestive Disease Center, Showa University Northern Yokohama Hospital |
| [ Summary ] | Pits on the surface of the colorectal mucosa can be observed with a magnifying endoscope. Pit patterns display a glandular structure as seen in histology. Pit pattern classifications (type I to V) correspond to the normal colorectal mucosa and various epithelial lesions. Type I to IV pit patterns usually correspond to intramucosal lesions. On the other hand, intramucosal carcinoma and carcinoma invading into the submucosal (SM) layers may include type V pit patterns. Pits may disappear and not be visible on the surface of the mucosa [type V non-structure (N) pit pattern]. Some SM matter may be exposed to the surface, and thus become an index of carcinomial invasion into deep SM layers. The histologically determined type of colorectal lesion and depth of carcinomial invasion may be presumed through pit pattern diagnosis. | |