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  • Title: Correlation between endoscopy, histopathology, and DNA flow cytometry in patients with gastric dyspepsia.
    Author: Abdel-Wahab M, Attallah AM, Elshal MF, Eldousoky I, Zalata KR, el-Ghawalby NA, Gad el-Hak N, el-Ebidy G, Ezzat F.
    Journal: Hepatogastroenterology; 1996; 43(11):1313-20. PubMed ID: 8908567.
    Abstract:
    BACKGROUND/AIMS: Gastric cancer has a poor prognosis, this is partly due to the advanced stage in which the tumor is diagnosed. The objective of this study is to elucidate the clinical significance of DNA flow cytometry and study its impact on monitoring the progression of gastric precancerous lesions in patients with gastric dyspepsia, and to correlate between endoscopic and histopathological findings with results of DNA flow cytometry. MATERIAL AND METHODS: A total of 92 cases underwent upper gastrointestinal endoscopy, 69 males with mean age 44.0 years and 23 females with mean age 38.7 years. Based on the endoscopic appearance, patients under study were classified into: 15 cases with endoscopic normal mucosa (EN), 26 cases with endoscopic gastritis (EG), 43 cases with duodenal ulcer (DU), and 8 cases with gastric ulcer (GU). Two antral biopsies were taken for histopathology and DNA flow cytometry. RESULTS: Chronic gastritis (CG) was present in 12 (80%) of EN cases. In DU patients, CG was present in 42 (97.7%) of cases, and it was associated with intestinal metaplasia (IM) in 11 (25.6%), and with dysplasia in 9 (20.9%) of these cases. While in GU patients, CG was present in all cases. Two (13.3%) of endoscopic normal cases revealed DNA aneuploidy in specimens with CG. The incidence of aneuploidy increases as the endoscopic findings changes from EG (15.4%), DU (16.3%) to GU (37.5%), and as the histopathological changes progresses from chronic atrophic gastritis (CAG) (18.2%), IM (21.7%) to dysplasia (33.3%). CONCLUSION: DNA aneuploidy is a useful marker for recognizing the presence of abnormal cells in epithelial lesions of the stomach, and for monitoring the progression of gastric lesions. Patients with gastric dyspepsia should not only be subjected to endoscopy but also to biopsy and DNA flow cytometry to allow the early detection of malignant transformations in gastric precancerous lesions.
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