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Peer-reviewedCC BY-NC-NDInternal Medicine

A Refractory Deep Gastric Ulcer after Proton Beam Therapy

Abstract

Picture 1. Picture 2. Picture 3. Picture 4. A 46-year-old man with locally advanced pancreatic head cancer underwent gemcitabine-concurrent proton beam therapy (2.0 GyE ×25 fractions; total dose: 50.0 GyE).He had no history of nonsteroidal anti-inflammatory drug use and tested negative for Helicobacter pylori.The patient presented with mild abdominal pain.Mucosal disruption and wall thinning in

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BibTeX
@article{fujita2026refractory,
  title = {{A Refractory Deep Gastric Ulcer after Proton Beam Therapy}},
  author = {Hayato Fujita and Tsuyoshi Suda and Kenkei Hasatani and Hiroyuki Aoyagi},
  journal = {Internal Medicine},
  year = {2026},
  month = aug,
  doi = {10.2169/internalmedicine.7584-26},
  url = {https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7584-26/_article},
  note = {CC BY-NC-ND},
}
RIS
TY  - JOUR
TI  - A Refractory Deep Gastric Ulcer after Proton Beam Therapy
AU  - Hayato Fujita
AU  - Tsuyoshi Suda
AU  - Kenkei Hasatani
AU  - Hiroyuki Aoyagi
PY  - 2026
DA  - 2026/08/25
JO  - Internal Medicine
DO  - 10.2169/internalmedicine.7584-26
UR  - https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7584-26/_article
AB  - Picture 1. Picture 2. Picture 3. Picture 4. A 46-year-old man with locally advanced pancreatic head cancer underwent gemcitabine-concurrent proton beam therapy (2.0 GyE ×25 fractions; total dose: 50.0 GyE).He had no history of nonsteroidal anti-inflammatory drug use and tested negative for Helicobacter pylori.The patient presented with mild abdominal pain.Mucosal disruption and wall thinning in
SN  - 1349-7235
SN  - 0918-2918
ER  -