{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T09:33:42Z","timestamp":1740130422963,"version":"3.37.3"},"reference-count":34,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[2022,12,6]],"date-time":"2022-12-06T00:00:00Z","timestamp":1670284800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2023,1,28]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>Background<\/jats:title>\n                  <jats:p>The clinical characteristics of prostate ductal carcinoma is still unclear, and treatment strategy has not yet been established due to its rarity. Therefore, we conducted a multicenter survey of radiation therapy for prostate ductal carcinoma in Japan.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Method<\/jats:title>\n                  <jats:p>Data of patients with ductal carcinoma of the prostate treated with radiation therapy between 1996 and 2018 were extracted from the database of each facility.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>Fifty-two treatment records of 41 patients were collected from nine institutions. The treatment purpose and situations were varied curative intent to palliation. Twenty-eight patients received curative treatments. The median follow-up period of these patients was 68\u00a0months. Androgen deprivation therapy was combined with radiation therapy in 26 cases (93%). X-ray and particle irradiation was used. Radiation dose range was 63\u201378\u00a0Gy; 5-year overall survival, progression-free survival and biochemical relapse-free survival were 87.0, 79.3 and 79.3%, respectively. One patient experienced Grade 3 radiation proctitis and one experienced Grade 3 radiation cystitis. There were no Grade 4 or worse adverse events.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusion<\/jats:title>\n                  <jats:p>Most patient received similar treatment with adenocarcinoma of prostate, and the clinical results were compatible. For more reliable evidence, further studies are required.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1093\/jjco\/hyac180","type":"journal-article","created":{"date-parts":[[2022,12,7]],"date-time":"2022-12-07T13:34:00Z","timestamp":1670420040000},"page":"146-152","source":"Crossref","is-referenced-by-count":0,"title":["Radiotherapy for ductal carcinoma of the prostate: an analysis based on the Japanese radiation oncology study group survey"],"prefix":"10.1093","volume":"53","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4899-1715","authenticated-orcid":false,"given":"Hidemasa","family":"Kawamura","sequence":"first","affiliation":[{"name":"Gunma University Heavy Ion Medical Center , Maebashi , Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Katsumasa","family":"Nakamura","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology, Hamamatsu University School of Medicine , Hamamatsu , Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yasuo","family":"Yoshioka","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology, Cancer Institute Hospital of the Japanese Foundation for Cancer Research , Tokyo , Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Satoshi","family":"Itasaka","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology, Kurashiki Central Hospital , Okayama , Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Natsuo","family":"Tomita","sequence":"additional","affiliation":[{"name":"Department of Radiology, Nagoya City University Graduate School of Medical Sciences , Nagoya , Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masahiro","family":"Onishi","sequence":"additional","affiliation":[{"name":"Oncology Center, Hidaka Hospital , Takasaki , 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