Successful Postpartum CAR T-cell Salvage Therapy for Primary Mediastinal Large B-cell Lymphoma with Residual Disease

Misaki Uemura1, Atsushi Marumo1, Yuta Kaito1

  • 1Department of Hematology, Nippon Medical School, Japan.

Primary mediastinal large B-cell lymphoma (PMBCL) during pregnancy is rare and presents therapeutic challenges due to fetal safety concerns. We report the case of a 29-year-old woman diagnosed with PMBCL at 19 weeks of gestation who wished to continue her pregnancy despite her diagnosis. She received rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisolone (R-CHOP) chemotherapy with multidisciplinary management and delivered a healthy infant at term. Although the tumor partially responded, residual disease persisted after eight cycles of treatment. She subsequently underwent chimeric antigen receptor T-cell therapy and achieved a complete response. This case highlights the importance of individualized treatment decisions and multidisciplinary collaboration in managing PMBCL during pregnancy.

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