Case Reports

Secondary T-cell lymphoma arising from pre-existing clones in a patient with diffuse large B-cell lymphoma during epcoritamab treatment following CAR-T therapy

Department of Hematology, Osaka International Cancer Institute, Osaka, Japan; Department of Hematology and Oncology, The University of Osaka, Suita
Department of Hematology, Osaka International Cancer Institute, Osaka
Department of Hematology, Osaka International Cancer Institute, Osaka
Department of Hematology, Osaka International Cancer Institute, Osaka
Department of Hematology, Osaka International Cancer Institute, Osaka
Department of Hematology, Osaka International Cancer Institute, Osaka
Department of Hematology, Osaka International Cancer Institute, Osaka
Department of Hematology, Osaka International Cancer Institute, Osaka
Department of Hematology, Osaka International Cancer Institute, Osaka
Department of Hematology, Osaka International Cancer Institute, Osaka
Department of Diagnostic Pathology and Cytology, Osaka International Cancer Institute, Osaka
Department of Hematology and Oncology, The University of Osaka, Suita
Department of Hematology and Oncology, The University of Osaka, Suita
Department of Hematology and Oncology, The University of Osaka, Suita
Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan; Division of Hematopoietic Disease Control, The Institute of Medical Science, The University of Tokyo, Tokyo
Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan; Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Kyoto, Japan; Department of Innovative Medicine, Faculty of Medicine, Kindai University, Osakasayama
Department of Hematology, Osaka International Cancer Institute, Osaka, Japan; Department of Oncology, Graduate School of Medicine, The University of Osaka, Suita
Haematologica Early view Dec 24, 2025 https://doi.org/10.3324/haematol.2025.289269