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식도암의 심달도 판정에 있어서 내시경적 초음파검사의 유용성

Other Titles
 Role and Limit of Endoscopic Ultrasonography in Staging for Esophageal Cancer 
 이상길  ;  박승우  ;  정재복  ;  이용찬  ;  송시영  ;  문영명  ;  강진경  ;  박인서 
 Korean Journal of Gastrointestinal Endoscopy (대한소화기내시경학회지), Vol.19(2) : 178-185, 1999 
Journal Title
 Korean Journal of Gastrointestinal Endoscopy (대한소화기내시경학회지) 
Issue Date
Esophageal cancer ; Endoscopic ultrasonography ; T-staging ; N-staging
Background: Despite the technical developments in diagnosis and therapy, esophageal cancer is highly lethal disease and the survival is largely dependent upon the stage of the disease. Preoperative cancer staging is crucial in choosing a therapeutic option as well as in predicting the prognosis of the patients. Staging has been based on computerized tomography (CT) and transabdominal ultrasonography. However CT has a limit in pre-cisely discriminating the depth of invasion or the lymph node metastases. With the devel-opment of endoscopic ultrasonography (EUS) and with its superiority in delineating wall structure and detecting lymph node metastases, its usefulness in staging for esophageal cancer has been cknowledged. In order to evaluate the accuracy of EUS, we compared EUS with pathologic findings in patients with esophageal carcinoma. Methods: From July 1990 to August 1997, 136 patients with esophageal cancer received preoperative cancer staging with EUS. Among them, 48 patients who underwent surgical procedures with the intention of radical resection were included. We compared the EUS and pathologic find-ings and analysed the accuracy of EUS for preoperative staging. Results: The overall accu-racy of EUS for T-staging was 43.8%. Twenty five percents of the patients (12/48) pre-sented high-grade tumor strictures, which precluded the passage of the endoscope. There was no statistical significance according to tumor site, size or gross morphology. However theaccuracy was significantly lower in tumors with ulceration than in tumors without ulceration (35.3% vs 64.3%, p=0.004). Mainly, ulceration in tumors caused significant overstaging of the T-stage. In the assessment of regional lymph node metastasis, the overall accuracy achieved by EUS was 66.6%; the sensitivity was 95.5%, specificity 42.3%, positive predictive value 58.3%, and negative predictive value 91.7%. Tumors with more than 2 lymph nodes rendered more accurate N-staging than tumors with less than 2 lymph nodes. Conclusions: In conclusion, the accuracy of the EUS for preoperative staging of esophageal cancer was not satisfactory, mostly influenced by ulceration in tumors and its resultant inflammatory reactions around the tumors, therefore more systematic study will be needed to establish the precise diagnostic criteria of EUS staging. (
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Park, Seung Woo(박승우) ORCID logo https://orcid.org/0000-0001-8230-964X
Song, Si Young(송시영) ORCID logo https://orcid.org/0000-0002-1417-4314
Lee, Sang Kil(이상길) ORCID logo https://orcid.org/0000-0002-0721-0364
Lee, Yong Chan(이용찬) ORCID logo https://orcid.org/0000-0001-8800-6906
Chung, Jae Bock(정재복)
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