Endoscopic Review of Early Gastric Cancer.
- Author:
Eun Ju YOOK
;
Euyi Hyeog IM
;
Hyun Yong JEONG
;
Heon Young LEE
;
Young Kun KIM
;
Jin Hee KIM
;
Seong Kul KIM
;
Seung Moo RHO
;
Eil Sung CHANG
;
Jin Sun BAE
;
Choong Sik LEE
;
June Sik CHO
- Publication Type:Original Article
- Keywords:
Early gastric cancer;
Lymph node metastasis;
Endoscopic diagnosis
- MeSH:
Carcinoma;
Diagnosis;
Lymph Nodes;
Mucous Membrane;
Neoplasm Metastasis;
Retrospective Studies;
Stomach Neoplasms*
- From:Korean Journal of Gastrointestinal Endoscopy
1995;15(2):185-193
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
In order to decide on appropriate treatment strategy against gastric cancer, an accurate preoperative evaluation of the depth of cancer invasion is essential. We studied 165 cases(19%) of early gastric cancer among 706 cases of gastric cancer. resected over a 6 year period. A retrospective study of early gastric cancer was done to evaluate the endoscopic accuracy and lymph node metastasis status, the following results were obtained: 1) The proportion of EGC according to macroscopic type was 68.5% of depressed type(II, III, IIa+III, IIc+III, III+IIc, IIb+IIc), 26% of elevated type(I, IIa, IIa+ IIb, IIa+IIc), 5.5% of flat type(IIb). 2) In the view of accuracy of endoscopic diagnosis, the rate of accurate diagnosis suitable for postoperative macroscopic type was 37.5%, the rate of unsuitable typed EGC was 33.3%, overestimation(diagnosed to AGC) was 20.6% and underestimation(diagnosed to benign diseases)was 8.6%. Overall accuracy of endoscopic diagnosis was 70.8%. 3) The cases confined to the mucosa were 40.6% and others were submucosal cancers(59.4%). 4) Positive lymph node metastasis was found in 1.5% of M-cancer and 18.4% of SM-cancer(overall 11.5%). 5) Node positive rate of differentiated cancer was 10.5%, undifferentiated carcinoma was 15.4%. There was no signficant difference in frequency of nodal metastasis according tumor size and macroscopic type. 6) Tumors which satisfy the following criteria may not metastasize to lymph nodes:(1) confined to the mucosa; (2) less than 2.0cm in diameter; (3) macroscopically elevated or flat; (4) histologically well or moderately differentiated.
