A Case of B-cell Lymphoma, Unclassifiable, With Features Intermediate Between Diffuse Large B-cell Lymphoma and Burkitt Lymphoma in a Korean Child

Ann Lab Med. 2012 Mar;32(2):162-6. doi: 10.3343/alm.2012.32.2.162. Epub 2012 Feb 23.

Abstract

B-cell lymphoma, unclassifiable, with features intermediate between diffuse large B-cell lymphoma (DLBCL) and Burkitt lymphoma (BL) (intermediate DLBCL/BL), is a heterogeneous group with some features resembling DLBCL and others resembling BL. Here, we report a case of intermediate DLBCL/BL in a Korean child. A 2-yr-old male was admitted for evaluation and management of left hip pain. Immunohistochemistry of a biopsy of the femur neck revealed tumor cells positive for CD20, CD10, BCL2, BCL6, and Ki67. A bone marrow (BM) aspirate smear revealed that 49.3% of all nucleated cells were abnormal lymphoid cells, composed of large- and medium-sized cells. Immunophenotyping of the neoplastic cells revealed positivity for CD19, CD10, CD20, and sIg lambda and negativity for CD34, Tdt, and myeloperoxidase (MPO). Cytogenetic and FISH analyses showed a complex karyotype, including t(8;14)(q24.1;q32) and IGH-MYC fusion. Intensive chemotherapy was initiated, including prednisone, vincristine, L-asparaginase, daunorubicin, and central nervous system prophylaxis with intrathecal methotrexate (MTX) and cytarabine. One month after the initial diagnosis, BM examination revealed the persistent of abnormal lymphoid cells; cerebrospinal fluid cytology, including cytospin, showed atypical lymphoid cells. The patient was treated again with cyclophosphamide, vincristine, prednisone, adriamycin, MTX, and intrathecal MTX and cytarabine. The patient died of sepsis 5 months after the second round of chemotherapy.

Keywords: Burkitt lymphoma; Diffuse large B-cell lymphoma; Gray zone lymphoma.

Publication types

  • Case Reports

MeSH terms

  • Antineoplastic Agents / therapeutic use
  • Bone Marrow Cells / pathology
  • Child, Preschool
  • Chromosomes, Human, Pair 14
  • Chromosomes, Human, Pair 8
  • Cyclophosphamide / therapeutic use
  • Doxorubicin / therapeutic use
  • Drug Therapy, Combination
  • Femur Neck / pathology
  • Humans
  • Immunohistochemistry
  • Immunophenotyping
  • In Situ Hybridization, Fluorescence
  • Karyotyping
  • Lymphoma, B-Cell / diagnosis*
  • Lymphoma, B-Cell / drug therapy
  • Male
  • Methotrexate / therapeutic use
  • Oncogene Proteins, Fusion / genetics
  • Prednisolone / therapeutic use
  • Republic of Korea
  • Translocation, Genetic
  • Treatment Outcome
  • Vincristine / therapeutic use

Substances

  • Antineoplastic Agents
  • Oncogene Proteins, Fusion
  • Vincristine
  • Doxorubicin
  • Cyclophosphamide
  • Prednisolone
  • Methotrexate