title: Important considerations when contemplating endoscopic resection of undifferentiated-type early gastric cancer.
abstract: Endoscopic resection (ER) of undifferentiated-type early gastric cancer (UD-EGC) has a lower curative resection (CR) rate than does ER of differentiated-type EGC (D-EGC). However, a low CR rate does not mean that it is unreasonable to schedule ER of UD-EGC. If ER is in fact curative, the long-term outcomes including survival rate are excellent. Quality of life is good because maximal stomach preservation is possible. However, UD-EGC and D-EGC differ histologically. Thus, when ER is contemplated to treat UD-EGC, a careful approach employing strict criteria is essential because the biology of UD-EGC and D-EGC differ.
authors.affiliation: Jie-Hyun Kim, Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 135-720, South Korea.
authors.forename: Jie-Hyun
authors.initials: JH
authors.lastname: Kim
mesh_terms: D000465:Algorithms; D001706:Biopsy; D002454:Cell Differentiation; D003661:Decision Support Techniques; D018572:Disease-Free Survival; D005743:Gastrectomy / Q000009:adverse effects / Q000379:methods* / Q000401:mortality; D005773:Gastroscopy / Q000009:adverse effects / Q000401:mortality; D006801:Humans; D009367:Neoplasm Staging; D018579:Patient Selection; D011237:Predictive Value of Tests; D011788:Quality of Life; D018570:Risk Assessment; D012307:Risk Factors; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D016896:Treatment Outcome
keywords: Early gastric cancer; Endoscopic resection; Lymph node metastasis; Undifferentiated
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