Endoscopic Treatment of Laterally Spreading Tumors Yui Kudo 1 , Naohisa Yahagi 1 , Toshiro Iizuka 1 , Shu Hoteya 1 , Natsuko Nagashima 1 1Department of Gastroenterology, Toranomon Hospital Keyword: 内視鏡的粘膜下層剝離術 , ESD , 大腸腫瘍 , LST , フレックスナイフ pp.1806-1811
Published Date 2005/12/25
DOI https://doi.org/10.11477/mf.1403100183
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 Although LST has the unique feature of tending to spread over the mucosal surface laterally, LST-NG and large-sized mixed type LST-G have relatively high risk for submocosal invasion. Therefore, en-bloc resection is necessary in cases of LST-NG and mixed type LST-G especially for large lesions exceeding 2cm. ESD is a wonderful technique, enabling us to resect the whole lesion en-bloc, and has certain merits for the treatment of large colonic tumors including LSTs. However, at present, only the expert should perform ESD since it involves risk for perforation and bleeding. Also, we have to select candidates for colonic ESD very carefully through precise preoperative diagnosis with chromoendoscopy and magnification.

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