AUTHOR=Fang Yi , Lin Weiwei , Shen Lijing , Ni Beiwen , Zhang Minyue , Cai Yongmei , Zhou Yi , Hou Jian TITLE=First-line anti-BCMA CAR-T cell therapy in a fragile patient with biclonal gammopathy and giant plasma cell tumor multiple myeloma with multiple comorbidities: a case report JOURNAL=Frontiers in Immunology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2025.1564774 DOI=10.3389/fimmu.2025.1564774 ISSN=1664-3224