International Journal of Hematology

DOI: 10.1007/s12185-018-2471-x Pages: 1-4

Long-term complete remission following tandem autologous stem cell transplantation and consolidative radiotherapy for refractory mediastinal gray-zone lymphoma

1. Chiba University Hospital, Department of Hematology

2. Chiba University Hospital, Department of Transfusion Medicine and Cell Therapy

3. Chiba University Hospital, Department of Pathology

4. International University of Health and Welfare School of Medicine, Department of Hematology

Correspondence to:
Emiko Sakaida
Tel: +81-43-225-6502
Email: esakaida@faculty.chiba-u.jp

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Abstract

Mediastinal gray zone lymphoma (MGZL) is a provisional entity with intermediate features between classical Hodgkin lymphoma (cHL) and diffuse large B-cell lymphoma. Outcomes for patients with MGZL are reportedly poorer than those for patients with cHL or primary mediastinal large B-cell lymphoma. Additionally, no standard management guidelines for patients with MGZL are available, primarily due to its recent identification, rarity, and challenges in diagnosis. Although recent several studies have suggested dose-adjusted EPOCH-R (etoposide, doxorubicin, vincristine, cyclophosphamide, prednisolone, and rituximab) may improve outcomes in patients with MGZL, numerous patients still suffer from relapsed/refractory MGZL, and the optimal management for such patients remains uncertain. Here, we report the first case of successful treatment of refractory MGZL by tandem high-dose chemotherapy supported by autologous stem cell transplantations (auto-SCTs) and consolidative radiotherapy (RT). To date, the patient remains in CR 33 months after the completion of RT, with no significant complications. This case suggests that tandem auto-SCTs may be a promising therapeutic option for relapsed/refractory MGZL.

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