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Endoscopic Submucosal Dissection for Treatment of Superficial Pharyngeal Carcinoma Tsuneo Oyama 1 , Akiko Takahashi 1 , Yoko Kitamura 1 , Akihisa Tomori 1 , Kinichi Hotta 1 , Yoshinori Miyata 1 1Department of Gastroenterology, Saku Central Hospital, Saku, Japan Keyword: 咽頭癌 , ESD , 上皮下浸潤 pp.253-263
Published Date 2010/2/25
DOI https://doi.org/10.11477/mf.1403101856
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 43 pharyngeal SCC in 39 patients had been treated by EMR or ESD from Jan. 2006 to Oct. 2009 in Saku Central Hospital. EMR and ESD were performed under general anesthesia with tracheal intubation. All patients were male. Median age was 65(50~82)years old. EMR were performed for 4 lesions,ESD were performed for 39 lesions. Macroscopic type was 0-I : 1,0-IIa : 17 and 0-IIb : 25. Median tumor size was 2(0.7~48)mm. Median observation duration was 23(1~44)months.

 R0 resection rate of EMR was 75%(3/4), and that of ESD was 100%(40/40). R0 resection was defined as En block resection, with lateral and vertical margins being negative. Neither Perforation,Pneumonia nor Vocal dysfunction occured. Delayed bleeding rate was 3%(1/39). Dysphasia was found in 3%(1/39). Epithelial and subepithelial lesions were 84%(37/43)and 16%(6/43)respectively. Subepithelial invasion rate of 0-I,0-IIa and 0-IIc type was 100%(1/1),24%(4/17)and 0-IIb 4%(1/25), respectively. When the size of 0-IIa component was up to 5mm, the invasion depth was EP(12/12). However, when the IIa component was 5mm or more,80%(4/5)of SCC had invaded into the subepithelial layer. Only one of 25(4%)from 0-IIb lesions invaded the subepithelium. However, the width of invasion was less than 1mm. En bloc resection rate of pharyngeal ESD was 100%, and there were no severe complications. Therefore ESD is a useful treatment method for superficial pharyngeal SCC.


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

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