| Theme | Reappraisal of Colorectal Protruded and Flat Lesions Which are Encountered During Endoscopy | |
|---|---|---|
| Title | Clinical Characteristics and Diagnosis of Colorectal Serrated Lesions | |
| Publish Date | 2011/11 | |
| Author | Hiroshi Kashida | Division of Gastroenterology and Hepatology, Kinki University Faculty of Medicine |
| Author | Takaaki Chikugo | Department of Pathology, Kinki University Faculty of Medicine |
| Author | Nobunao Ikehara | Digestive Disease Center, Showa University Northern Yokohama Hospital |
| Author | Shigeharu Hamatani | Division of Pathology, Showa University Northern Yokohama Hospital |
| [ Summary ] | With the recent change which have occurred in pathological concepts, colorectal serrated lesions are now divided into categories which consist of traditional serrated adenomas, typical hyperplastic polyps and sessile serrated polyps. There are significant differences between traditional serrated adenomas and sessile serrated polyps concerning location, configuration and color. When employing chromoendoscopy, most sessile serrated polyps and typical hyperplastic polyps exhibit star-like patterns, in contrast with traditional serrated adenomas, most of which have fern- or pinecone-like patterns. A differential diagnosis between traditional sessile polyps and the other two is possible with a high degree of accuracy. On the other hand, making endoscopic distinctions between sessile serrated polyps and typical hyperplastic polyps is not easy, except that the location and size are significantly different. | |