{"title":"一例放疗用水凝胶垫片移入肺动脉的病例。","authors":"Katsuhide Kojima, Yuka Takahashi, Soichi Sugiyama, Yudai Asano, Nanako Okawa, Satoko Makimoto, Fumiyo Higaki, Toshihiro Iguchi, Takao Hiraki","doi":"10.18926/AMO/66157","DOIUrl":null,"url":null,"abstract":"<p><p>A 67-year-old man was referred to our hospital for the diagnosis and treatment of prostate cancer. Multidisciplinary discussion led to intensity-modulated radiotherapy preceded by hormone therapy. Before radiotherapy, a biodegradable hydrogel spacer (HS) was placed between the prostate and rectum to reduce radiation injury risk. Three weeks postplacement, pelvic magnetic resonance imaging revealed HS migration into the pelvic vein. Subsequent whole-body contrast-enhanced computed tomography (CECT) revealed HS migration into the pulmonary artery. The patient showed no symptoms or clinical signs. Radiotherapy was completed uneventfully. Complete absorption of the migrated HS was confirmed using CECT images 5 months postplacement.</p>","PeriodicalId":7017,"journal":{"name":"Acta medica Okayama","volume":"77 6","pages":"647-650"},"PeriodicalIF":0.6000,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Case of Migration of a Hydrogel Spacer for Radiotherapy into the Pulmonary Artery.\",\"authors\":\"Katsuhide Kojima, Yuka Takahashi, Soichi Sugiyama, Yudai Asano, Nanako Okawa, Satoko Makimoto, Fumiyo Higaki, Toshihiro Iguchi, Takao Hiraki\",\"doi\":\"10.18926/AMO/66157\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>A 67-year-old man was referred to our hospital for the diagnosis and treatment of prostate cancer. Multidisciplinary discussion led to intensity-modulated radiotherapy preceded by hormone therapy. Before radiotherapy, a biodegradable hydrogel spacer (HS) was placed between the prostate and rectum to reduce radiation injury risk. Three weeks postplacement, pelvic magnetic resonance imaging revealed HS migration into the pelvic vein. Subsequent whole-body contrast-enhanced computed tomography (CECT) revealed HS migration into the pulmonary artery. The patient showed no symptoms or clinical signs. Radiotherapy was completed uneventfully. Complete absorption of the migrated HS was confirmed using CECT images 5 months postplacement.</p>\",\"PeriodicalId\":7017,\"journal\":{\"name\":\"Acta medica Okayama\",\"volume\":\"77 6\",\"pages\":\"647-650\"},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2023-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Acta medica Okayama\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.18926/AMO/66157\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MEDICINE, RESEARCH & EXPERIMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta medica Okayama","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.18926/AMO/66157","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MEDICINE, RESEARCH & EXPERIMENTAL","Score":null,"Total":0}
A Case of Migration of a Hydrogel Spacer for Radiotherapy into the Pulmonary Artery.
A 67-year-old man was referred to our hospital for the diagnosis and treatment of prostate cancer. Multidisciplinary discussion led to intensity-modulated radiotherapy preceded by hormone therapy. Before radiotherapy, a biodegradable hydrogel spacer (HS) was placed between the prostate and rectum to reduce radiation injury risk. Three weeks postplacement, pelvic magnetic resonance imaging revealed HS migration into the pelvic vein. Subsequent whole-body contrast-enhanced computed tomography (CECT) revealed HS migration into the pulmonary artery. The patient showed no symptoms or clinical signs. Radiotherapy was completed uneventfully. Complete absorption of the migrated HS was confirmed using CECT images 5 months postplacement.
期刊介绍：
Acta Medica Okayama (AMO) publishes papers relating to all areas of basic and clinical medical science. Papers may be submitted by those not affiliated with Okayama University. Only original papers which have not been published or submitted elsewhere and timely review articles should be submitted. Original papers may be Full-length Articles or Short Communications. Case Reports are considered if they describe significant and substantial new findings. Preliminary observations are not accepted.
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