ArticleClinical journal of gastroenterology2018
Gastric adenocarcinoma coexisting with a reddish semipedunculated polyp arising from Helicobacter pylori-negative normal gastric mucosa: a report of two cases.
Article in Clinical journal of gastroenterology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Potassium-Competitive Acid Blocker-Associated Gastric Hyperplastic Polyps With Severe Bleeding: A Case Series.DEN open · 2026Article
- Foveolar-Type Gastric Adenoma With a Raspberry-Like Appearance That Underwent Dramatic Morphological Changes Within Eight Months.Case reports in gastrointestinal medicine · 2026Article
- Grasp-and-lift technique - Novel cold forceps polypectomy technique for a gastric foveolar-type adenoma.Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society · 2025Article
- Prevalence of Gastric Epithelial Tumors in Helicobacter pylori-uninfected Individuals Undergoing a Medical Checkup.Internal medicine (Tokyo, Japan) · 2024Article
- Endoscopic Diagnosis Strategy of Raspberry-Shaped Gastric Lesion in Helicobacter Pylori-Uninfected Patient.Journal of clinical medicine · 2023Article
- Gastric Foveolar-type Adenocarcinoma with Raspberry-like Appearance in a Helicobacter pylori-uninfected Stomach: A Long-term Retrospective Follow-up of 16 Years.Internal medicine (Tokyo, Japan) · 2023Article
- Clinicopathological and molecular characterization of early gastric adenocarcinoma in Helicobacter pylori-uninfected patients: emphasis on differentiated gastric adenocarcinoma.Journal of gastroenterology · 2022Article
- Linked Color Imaging Demonstrates Characteristic Findings in Semi-Pedunculated Gastric Adenocarcinoma in Helicobacter pylori-Negative Normal Mucosa.Clinical endoscopy · 2021Article
- Risk factors and clinical correlates of neoplastic transformation in gastric hyperplastic polyps in Chinese patients.Scientific reports · 2020Article
- UEG Week 2019 Poster Presentations.United European gastroenterology journal · 2019Article
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14 authors.
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Abstract
We experienced two cases of adenocarcinoma coexisting with a hyperplastic polyp arising from Helicobacter pylori-negative normal gastric mucosa. The first case was of a 59-year-old man. Esophagogastroduodenoscopy revealed a protruding lesion measuring 4 mm in diameter on the greater curvature of the middle gastric body. The second case was of a 47-year-old man. Esophagogastroduodenoscopy showed a protruding lesion measuring 5 mm located at the greater curvature of the upper gastric body. The absence of atrophic changes in the entire gastric mucosa was confirmed endoscopically in both cases. Multiple H. pylori tests were all negative. Endoscopically, these protruding lesions appeared as reddish, semipedunculated polyps. Hyperplastic polyps were suspected based on white light endoscopic findings. Magnified endoscopy with narrow band imaging could not predict the coexistence of cancer. However, histopathological examination of the resected specimen revealed focal cancer at the surface of the gastric hyperplastic polyps. Considering the possibility that cancer may be coexisting in polyps, when reddish polyps are detected in H. pylori-negative normal gastric mucosa, it is important to perform a biopsy, or a careful follow-up endoscopy.
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