{"title":"Atezolizumab-induced myasthenia gravis and myositis: a fatal case report and review of the literature.","authors":"Yuya Kobayashi, Kiyoshiro Nagamatsu, Yusaku Shimizu, Ataru Nakayama, Yoshiki Sekijima","doi":"10.1007/s13691-025-00791-w","DOIUrl":null,"url":null,"abstract":"<p><p>Immune checkpoint inhibitors can cause immune-related adverse events, with neurologic manifestations such as myasthenia gravis (MG) and myositis predominantly reported with PD-1 inhibitors, while cases linked to PD-L1 inhibitors remain rare. An 84-year-old man with hepatocellular carcinoma developed severe MG and myositis after atezolizumab treatment. Despite intensive therapy, including corticosteroids, plasma exchange, and intravenous immunoglobulin, his condition worsened, and he died. MG in cancer patients poses treatment challenges due to tumor progression and functional decline. Given the limited reports on atezolizumab-induced MG, further case accumulation is essential to improve understanding of its clinical course and optimize management strategies.</p>","PeriodicalId":13703,"journal":{"name":"International Cancer Conference Journal","volume":"14 4","pages":"428-432"},"PeriodicalIF":0.4000,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12696201/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Cancer Conference Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/s13691-025-00791-w","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/10/1 0:00:00","PubModel":"eCollection","JCR":"Q4","JCRName":"ONCOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Immune checkpoint inhibitors can cause immune-related adverse events, with neurologic manifestations such as myasthenia gravis (MG) and myositis predominantly reported with PD-1 inhibitors, while cases linked to PD-L1 inhibitors remain rare. An 84-year-old man with hepatocellular carcinoma developed severe MG and myositis after atezolizumab treatment. Despite intensive therapy, including corticosteroids, plasma exchange, and intravenous immunoglobulin, his condition worsened, and he died. MG in cancer patients poses treatment challenges due to tumor progression and functional decline. Given the limited reports on atezolizumab-induced MG, further case accumulation is essential to improve understanding of its clinical course and optimize management strategies.
期刊介绍:
This online-only journal publishes original case reports on all types of cancer. In particular, we welcome not only case reports of educational value in the diagnosis and treatment of cancers, but also reports on molecularly analyzed cancer cases, including gene mutations, gene fusions, gene expression, and changes in copy number, regardless of their known clinical significance. Assessing the molecular analysis of a tumor usually requires a “cancer conference” in which experts from various fields discuss it. Even if the authors and their respective “cancer conference” were unable to determine the clinical significance of molecular changes at the time of submission and publication, their data may provide evidence that will help the scientific community develop precision medicine solutions in the future. We welcome case reports with reviews of the literature on similar cases, as they are more useful and valuable to readers than are reports of rare cases. International Cancer Conference Journal is the official publication of the Japan Society of Clinical Oncology (JSCO).
- Presents an online-only collection of original case reports on all types of cancer
- In particular, welcomes molecularly analyzed cancer cases
- The Official Publication of the Japan Society of Clinical Oncology (JSCO)