| Theme | Current topics in interval colorectal cancers | |
|---|---|---|
| Title | Interval colorectal cancer 4 mm in size detected post initial colonoscopy and multiple polypectomies | |
| Publish Date | 2017/01 | |
| Author | Mineo Iwatate | Gastrointestinal Center, Sano Hospital |
| Author | Hironori Sunakawa | Gastrointestinal Center, Sano Hospital |
| Author | Takahiro Utsumi | Gastrointestinal Center, Sano Hospital |
| Author | Santa Hattori | Gastrointestinal Center, Sano Hospital |
| Author | Wataru Sano | Gastrointestinal Center, Sano Hospital |
| Author | Noriaki Hasuike | Gastrointestinal Center, Sano Hospital |
| Author | Taro Ikumoto | Gastrointestinal Cancer Center, Sano Hospital |
| Author | Masahito Kotaka | Gastrointestinal Cancer Center, Sano Hospital |
| Author | Yasushi Sano | Gastrointestinal Center, Sano Hospital |
| [ Summary ] | A man in his 70s underwent screening colonoscopy for FOBT with removing multiple colorectal polyps. 15 months after initial colonoscopy, he underwent follow-up colonoscopy, during which we found diminutive Is+IIc lesion 4 mm in size diagnosed as deep submucosal invasive cancer. He had surgery and pathological reports indicated T1b invasive cancer. Interval cancer was overlooked in the initial colonoscopy. The suspected reason for overlooking the lesion initially was that it was the depressed type, which is not easily found, especially in the presence of multiple polyps. | |