| Theme | Current topics in interval colorectal cancers | |
|---|---|---|
| Title | Development of invasive colon cancer post colonoscopy patient | |
| Publish Date | 2017/01 | |
| Author | Joichiro Horii | Departments of Gastroenterology, Fukuyama Medical Center |
| Author | Tatsuya Toyokawa | Departments of Gastroenterology, Fukuyama Medical Center |
| Author | Katsunori Matsueda | Departments of Gastroenterology, Fukuyama Medical Center |
| Author | Nanako Yasui | Departments of Gastroenterological Surgery, Fukuyama Medical Center |
| Author | Kenta Isoda | Departments of Gastroenterological Surgery, Fukuyama Medical Center |
| Author | Isao Fujita | Departments of Gastroenterology, Fukuyama Medical Center |
| Author | Kazuhide Iwakawa | Departments of Gastroenterological Surgery, Fukuyama Medical Center |
| [ Summary ] | A japanese man in his 70s was diagnosed with invasive sigmoid colon cancer after a screening colonoscopy 15 months earlier. Colonoscopy revealed a depressed lesion with a circumferential embankment and was 25 mm in dia. We performed a sigmoidectomy and D3 lymph node dissection. Pathological examination revealed a pType 2, 20×22 mm, tub1，pT2 (MP), INFα, int, ly1, v1, pN1, PM0, DM0, RM0, pStage IIIa cancer. Interval colorectal cancers (CRCs) are generally defined as CRC after a colorectal screening examinations or tests in which no cancer is detected and before the date of the next recommended exam. A number of studies have indicated interval cancers are associated with the proximal colon, a history of adenoma, a family history of CRC, or sessile serrated adenoma/polyps. To prevent interval cancers, we must take the characteristics of interval cancers into account. | |