Stomach and Intestine(Tokyo) Volume 49, Issue 12 (November 2014)
Japanese

Pit Pattern Diagnosis of Laterally Spreading Tumors Hiro-o Matsushita 1 , Hiro-o Yamano 1 , Kenjiro Yoshikawa 1 , Ryo Takagi 1 , Eiji Harada 1 , Yoshihito Tanaka 1 , Michiko Nakaoka 1 , Ryogo Himori 1 , Yuko Yoshida 1 , Kentaro Sato 1 , Yasushi Imai 1 1Department of Gastroenterology, Akita Red Cross Hospital, Akita, Japan Keyword: 側方発育型大腸腫瘍 , LST , pit pattern診断 , 早期大腸癌 pp.1673-1683
Published Date 2014/11/25
DOI https://doi.org/10.11477/mf.1403200046
  • Abstract
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  • Reference

 LSTs(laterally spreading tumors)are classified into two types according to their morphology, granular(LST-G)and non-granular(LST-NG). Each type has two sub-groups : LST-G has homogenous(G-H)and nodular mixed(G-M)and LST-NG has flat elevated(NG-F)and pseudo-depressed(NG-PD). Each sub-group has its own distinct characteristics. Using magnifying endoscopy, most G-H lesions revealed a type IVB or type IIIL-1 pit pattern, most G-M lesions revealed a type IVB, type IVV, or type VI pit pattern, and most NG-F lesions revealed a type IIIL-2 or type IIIL-1 pit pattern. Most cases of NG-PD LST had a type IIIL pit pattern. Thus, it is important to conduct qualitative diagnosis of all cases of LSTs using magnifying endoscopy, based on the clinicopathological characteristics of the LST sub-group.


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基本情報

05362180.49.12.jpg
胃と腸
49巻12号 (2014年11月)
電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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