{"title":"COVID-19 mRNA疫苗诱导的淋巴结病在氟脱氧葡萄糖PET/CT扫描上模拟肺癌转移","authors":"Y. Hama, E. Tate","doi":"10.4103/2588-9044.338635","DOIUrl":null,"url":null,"abstract":"A 66-year-old man with stage IIA nonsmall cell lung cancer who had complete response to radiation therapy 4.5 years earlier underwent a fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) scan due to elevated CA19-9 levels. PET/CT scan showed a new cluster of left axillary and supraclavicular lymphadenopathy with increased FDG uptake suggesting lymph node metastasis. Later, it was found that the patient received the second dose of coronavirus disease 2019 mRNA vaccine 7 days before the PET/CT. Retrospective evaluation showed a vague linear-shaped metabolic activity in the left deltoid muscle with mild FDG uptake in the injection site. Based on the detailed history and PET/CT findings, a diagnosis of vaccination-induced lymphadenopathy was made. This diagnosis was confirmed after 6 months of follow-up.","PeriodicalId":18055,"journal":{"name":"Libyan Journal of Medical Sciences","volume":"18 1","pages":"165 - 167"},"PeriodicalIF":0.0000,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"COVID-19 mRNA vaccination-induced lymphadenopathy mimics lung cancer metastasis on fluorodeoxyglucose PET/CT scan\",\"authors\":\"Y. Hama, E. Tate\",\"doi\":\"10.4103/2588-9044.338635\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A 66-year-old man with stage IIA nonsmall cell lung cancer who had complete response to radiation therapy 4.5 years earlier underwent a fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) scan due to elevated CA19-9 levels. PET/CT scan showed a new cluster of left axillary and supraclavicular lymphadenopathy with increased FDG uptake suggesting lymph node metastasis. Later, it was found that the patient received the second dose of coronavirus disease 2019 mRNA vaccine 7 days before the PET/CT. Retrospective evaluation showed a vague linear-shaped metabolic activity in the left deltoid muscle with mild FDG uptake in the injection site. Based on the detailed history and PET/CT findings, a diagnosis of vaccination-induced lymphadenopathy was made. This diagnosis was confirmed after 6 months of follow-up.\",\"PeriodicalId\":18055,\"journal\":{\"name\":\"Libyan Journal of Medical Sciences\",\"volume\":\"18 1\",\"pages\":\"165 - 167\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Libyan Journal of Medical Sciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4103/2588-9044.338635\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Libyan Journal of Medical Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4103/2588-9044.338635","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
COVID-19 mRNA vaccination-induced lymphadenopathy mimics lung cancer metastasis on fluorodeoxyglucose PET/CT scan
A 66-year-old man with stage IIA nonsmall cell lung cancer who had complete response to radiation therapy 4.5 years earlier underwent a fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) scan due to elevated CA19-9 levels. PET/CT scan showed a new cluster of left axillary and supraclavicular lymphadenopathy with increased FDG uptake suggesting lymph node metastasis. Later, it was found that the patient received the second dose of coronavirus disease 2019 mRNA vaccine 7 days before the PET/CT. Retrospective evaluation showed a vague linear-shaped metabolic activity in the left deltoid muscle with mild FDG uptake in the injection site. Based on the detailed history and PET/CT findings, a diagnosis of vaccination-induced lymphadenopathy was made. This diagnosis was confirmed after 6 months of follow-up.
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