AUTHOR=Xue Song , Chen Man , Sun Hui-Peng , Wang Tong , Zhang Li-Na , Cao Xing-Yu TITLE=Case Report: Rapid response to gemtuzumab-ozogamicin in a pediatric patient with refractory systemic mastocytosis with AML1::ETO+ acute myeloid leukemia JOURNAL=Frontiers in Immunology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2025.1566805 DOI=10.3389/fimmu.2025.1566805 ISSN=1664-3224