| Theme | NBI in colon and rectum | |
|---|---|---|
| Title | NBI colonoscopic findings concerning ulcerative colitis | |
| Publish Date | 2007/03 | |
| Author | Takayuki Matsumoto | Department of Medicine and Clinical Science, Graduate School of Medical Science, Kyushu University |
| Author | Tetsuji Kudo | Department of Medicine and Clinical Science, Graduate School of Medical Science, Kyushu University |
| Author | Mitsuo Iida | Department of Medicine and Clinical Science, Graduate School of Medical Science, Kyushu University |
| [ Summary ] | Narrow Band Imaging (NBI) colonoscopy was used with patients having ulcerative colitis (UC). In the active mucosa, NBI colonoscopy depicted mucus exudates, white spots and ulcers as whitish areas, and areas of friability as black regions. In addition, crypt openings and villous structures were evident with the use of this procedure. In the inactive mucosa, there were two mucosal vascular patterns (MVP) one being composed of deep, green vessels and superficial, black vessels the other lacking superficial vessels. When the histologic findings were taken into consideration, inflammatory infiltrates were more evident in the latter pattern than in the former. When coupled with magnifying instruments, the active mucosa was classified into those with obvious crypt openings and those with villous structures. Furthermore, MVP in the inactive mucosa was observed to have a honeycomb like structure or an irregular, tortuous structure, as seen under magnifying NBI colonoscopy. These observations suggest that NBI colonoscopy may have value in the assessment of the histologic severity of UC. | |