Stomach and Intestine(Tokyo) Volume 49, Issue 8 (July 2014)

Endoscopic Diagnosis of Invasion Depth for Superficial Spreading-Type Esophagus Cancer Ryu Ishihara 1 , Takeshi Yamashina 1 , Kenji Aoi 1 , Noriko Matsuura 1 , Takashi Ito 1 , Takashi Kanesaka 1 , Sachiko Yamamoto 1 , Noboru Hanaoka 1 , Yoji Takeuchi 1 , Koji Higashino 1 , Noriya Uedo 1 , Hiroyasu Iishi 1 , Masaharu Tatsuta 1 1Department of Gastrointestinal Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan Keyword: 表面型表層拡大型食道癌 , 食道学会分類 , 食道癌 , NBI , 拡大内視鏡 pp.1164-1172
Published Date 2014/7/25
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 In this study, we analyzed data of patients with superficial spreading-type esophageal cancer who were treated between 2004 and 2011. Diagnostic accuracy for cancer invasion depth was 75.6%. Diagnostic accuracy for lesions endoscopically diagnosed as T1a-EP/LPM cancer was also analyzed with regard to the lesions' size. The accuracy for lesions ~24mm, 25mm~49mm, and 50mm~ in size was 94.0%, 86.8%, and 71.9%, respectively(p<0.001). The accuracy decreased with the increase in the lesions' size. Histological examination revealed that nine lesions were invading deeper than endoscopic diagnosis. Of nine lesions, four were invading into the muscularis mucosa or deeper besides invasion of the surface component, whereas the remaining five were invading into the muscularis mucosa or deeper by approximately 1mm width. To further improve diagnostic accuracy, diagnosis of such small invasions, which is considered a challenge, is required.

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49巻8号 (2014年7月)
電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院