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Updated: May 13, 2026

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Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
Published on: February 6, 2019
Proton beam therapy for malignancy in Bloom syndrome
M Mizumoto1, H Hashii, M Senarita
1Department of Radiation Oncology, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, Japan. mizumoto@pmrc.tsukuba.ac.jp
Summary
Proton beam therapy (PBT) was used for oropharyngeal cancer in a patient with Bloom syndrome, a DNA repair disorder. PBT showed excellent dose concentration, achieving a tumor response despite treatment interruptions due to mucositis.
Area of Science:
- Oncology
- Radiation Oncology
- Genetics
Background:
- Bloom syndrome is a rare genetic disorder characterized by genomic instability and increased sensitivity to DNA damage, including radiotherapy.
- Patients with Bloom syndrome often present challenges in cancer treatment due to their radiosensitivity.
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