[Diagnostic possibilities of gastric biopsy in stomach cancer].

The results of histological examinations of gastric biopsies are presented; over 20% of the biopsies are sent for examinations with the diagnosis of cancer of suspected cancer of the stomach. Histological examinations of gastrobiopsies confirm only 62% of definite endoscopic diagnoses of gastric cancer which is explained either by a wrong choice of the affection area for biopsy or wrong evaluation of the gastroscopic picture of early cancer. It was first discoverd in 15.5% of cases of histologically confirmed gastric cancer in first examinations of materials of gastric biopsies. Early carcinoma was found in over half of these cases. Erroneous diagnoses in examinations of materials from gastric biopsies were established in 3.5% of the cases. They include both false positive and false negative conclusions on gastric cancer.