Japanese

Assessment of Esophageal Invasion by Gastric Carcinoma through Using Endoscopic Ultrasonography Yasunori Mizuguchi 1 , Atsushi Hijikata 2 , Kyosuke Ushio 1 1Department of Diagnostic Radiology, National Cancer Center Hospital 2Department of Endoscopy, National Cancer Center Hospital Keyword: 噴門部領域進行胃癌食道浸潤超音波内視鏡診断 pp.1053-1061
Published Date 1997/7/25
DOI https://doi.org/10.11477/mf.1403104967
  • Abstract
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 Preoperative accurate assessment of esophageal invasion of gastric carcinoma is important from the surgical point of view. The aim of this study is to evaluate the usefulness of endoscopic ultrasonography (EUS) in the diagnosis of esophageal invasion of gastric carcinoma located in the cardiac area.

 During the period between Jan. 1994 and Dec. 1996, EUS using radial scanner with 7.5, 12 or 20 MHz was carried out in 53 patients with gastric carcinoma located in the cardiac area who underwent subsequent surgical resection. The examination of EUS was performed by the deaerated water‐filled method or the balloon method. The resected specimens were examined histopathologically and the presence or absence of esophageal invasion was also examined in detail. The ultrasonographic finding were compared with the histopathological findings of esophageal invasion.

 Histopathological invasion of the esophagus was correctly diagnosed by EUS in 22 of 27 patients (sensitivity 81.5%). On the other hand, absence of esophageal invasion was correctly diagnosed in 25 out of 26 cases (specificity 96.2%), so overall accuracy was 88.7%. When we consider that the degree of length of esophageal invasion was correct within a range of plus or minus 1 cm, the accuracy of EUS diagnosis was 83.0% (44/53 cases).

 One main reason for misdiagnosis or overestimation of the length of esophageal invasion was probably caused by the difficulty in recognizing the indistinct esophagogastric junction when remarkable cancer invasion was present.

 In conclusion,EUS is one of the methods for useful preoperative evaluation of esophageal invasion of gastric carcinoma.


Copyright © 1997, Igaku-Shoin Ltd. All rights reserved.

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

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