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Authors
Mizuma, Tsuyoshi
Mori, Tomoaki
Hirozane, Toru
Yamaguchi, Sayaka
Asano, Naofumi
Kobayashi, Eisuke
Yoshiyama, Akira
Morioka, Hideo
Arai, Manabu
Nozaki, Taiki
Ueno, Akihisa
Okita, Hajime
Nakayama, Robert
Nakamura, Masaya
Matsumoto, Morio
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Article History
Received: 2 December 2025
Accepted: 2 October 2026
First Online: 11 October 2026
Declarations
Ethics approval and consent to participate: This study was approved by the ethics committee of Keio University School of Medicine. The patients provided signed informed consent for an Institutional Review Board-approved protocol for the research use of medical records, pathological specimens obtained as part of routine clinical care, and publication.
Consent for publication: Written informed consent was obtained from all patients for publication of their clinical details and accompanying images.
Competing interests: The authors declare that they have no competing interests.
