| Theme | Average-risk colon cander screening | |
|---|---|---|
| Title | Colorectal cancers detected by mass screening total colonoscopy | |
| Publish Date | 2001/03 | |
| Author | Mikiko Nomura | Department of Gastroenterology, Sendai City Medical Center |
| Author | Atsuo Matsunaga | Department of Gastroenterology, Sendai City Medical Center |
| Author | Kiyoshi Uchimi | Department of Gastroenterology, Sendai City Medical Center |
| Author | Kyoko Okubo | Department of Gastroenterology, Sendai City Medical Center |
| Author | Dai Hirasawa | Department of Gastroenterology, Sendai City Medical Center |
| Author | Naotaka Fujita | Department of Gastroenterology, Sendai City Medical Center |
| [ Summary ] | To clarify the clinico-pathological characteristics of colorectal cancers detected by mass screening total colonoscopy (screening group), we reviewed 417 colorectal cancers in the group. Four hundred forty nine colorectal cancers detected by total colonoscopy at our outpatient department (outpatient group), were also reviewed as a control sample. The results were as follows 1) The rate (84.6%), of early colorectal cancers in the screening group was significantly higher than that (36.3%), in the outpatient group. 2) The size of cancers (19.5 +- 14.2mm) in the screening group was smaller than that (65.1 +- 11.6mm), in the outpatient group. 3) The rate (87.8%) of Dukes stage A in the screening group was significantly higher than that (43.2%), in the outpatient group. 4) The rate (16.2%), of superficial elevated type (IIa) cancer was significantly higher than that (8.0%), in the outpatient group. IIa lesions was frequently seen in the transverse colon. |
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