Possible Roles of Endoscopic Ultrasonography in Ulcerative Colitis-associated Colorectal Cancer Seiji Shimizu 1 , Tatsuki Minami 1 , Wataru Fukuda 1 , Mika Mihara 1 , Kayoko Shimizu 1 , Hajime Honjo 1 , Yasuhide Mitsumoto 1 , Takahiro Mori 1 , Hideo Tomioka 1 , Masahiro Tada 2 1Department of Gastroenterology, JR West Osaka Railway Hospital, Osaka, Japan 2Tada Gastroenterological Clinic, Kyoto, Japan Keyword: 潰瘍性大腸炎(UC)関連大腸癌 , colitic cancer , 潰瘍性大腸炎 , dysplasia , EUS pp.1325-1334
Published Date 2008/8/25
DOI https://doi.org/10.11477/mf.1403101446
  • Abstract
  • Look Inside
  • Reference
  • Cited by

 The possible roles of endoscopic ultrasonography(EUS)in the diagnosis of ulcerative colitis-associated colorectal cancers were described, based on our experience of eight cancers in seven cases. The existence of cancer could be recognized by EUS in all cases, but flat dysplasia surrounding cancer could not be recognized by EUS. The qualitative diagnosis of cancer was possible in invasive cancers based on the presence of a hypoechoic area with irregular contours penetrating the wall layers, but such diaghosis was impossible in mucosal cancers. The depth of cancer infiltration could be estimated by EUS when the instrument was properly chosen. Our conclusion is that EUS may have the potential to detect invasive cancers although it is difficult to incorporate EUS into cancer surveillance.

Copyright © 2008, Igaku-Shoin Ltd. All rights reserved.


電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院