Korean J Gastrointest Endosc.  1983 Nov;3(1):10-16.

Diagnostic Accuracy in Endoscopic Gastric Biopsy - Part 1. Analysis of preoperative gastric biopsies in 236 cases with neoplastic lesions based on gastretomy and histotopographic investigation

Abstract

Two hundreds and forty six preoperative endoseopic gastric biopsies from 236 conaecutive cases were subjected to the retrospective analyais of diagnostic accuracy among 597 tumor- bearing gastrectomy specimens confirmed by extended histotopographic investigations during a period of 1980 to 1981 at Seoul National University Hospital. The overall diagnostic accuracy of endoscopic gastric biopsy was 93.1% with 0.8% false positivity and 3.5% of false negative caaes; of those, the concordance rate of preoperative biopsy diagnosis based on the histotopographic investigation of the gastrectomy remained in 85.5%, whereas 75% of diagnostic discrepancy wae reaulted from inappropriate biopsy sampling or failure of neoplastic tissue obtainability; and the rest of 25% was mostly false negative cases. (continue...)

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