ArticleJournal of gastroenterology and hepatology2024
The incidence of nonampullary duodenal cancer in Japan 2016-2020: analysis of a national cancer registry.
Article in Journal of gastroenterology and hepatology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
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Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Clinical Outcomes of Underwater Endoscopic Submucosal Dissection for Duodenal Tumors: A Systematic Review and Meta-Analysis.Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society · 2026Pooled it
- Cold Resection for Superficial Non-Ampullary Duodenal Epithelial Tumors: Current Evidence and Clinical Perspectives.DEN open · 2027Review
- Clinical practice guidelines for duodenal cancer 2025.Journal of gastroenterology · 2026Review
- Article
- The incidence of nonampullary duodenal cancer in Japan 2016-2020: analysis of a national cancer registry.Journal of gastroenterology and hepatology · 2024Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimEpidemiological research is scarce in Asian countries including Japan. We aimed to clarify the epidemiological trend of nonampullary duodenal cancer (NADC) in Japan using a national database.
methodsAll patients with NADC diagnosed between 2016 and 2020 were identified from the Japanese national cancer registry. The crude and age-adjusted incidences were determined and temporal trends including diagnostic mode, tumor stage, and treatments were analyzed.
resultsA total of 14 484 patients were included. The crude and age-adjusted incidences were 21.8-23.5 and 10.7-12.1 per 1 000 000 person-years. Male-to-female ratio was 1.7:1, and the incidence increased with age. The number of patients was highest among 70-79 year age group in both sexes. In total, 55% of patients were diagnosed during screening or surveillance for other diseases. In 54% of patients, the tumor stage was localized. The major treatment was surgery (32%), followed by endoscopic resection (27%). The trends for detection mode, tumor stage, and treatment were consistent during 2016-2020.
conclusionsThis study clarified and confirmed the high incidence of duodenal cancer in Japan. Characteristically, many NADC cases are diagnosed asymptomatically and treated by endoscopic or surgical treatment.
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