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International Journal of Hematology

, Volume 78, Issue 5, pp 439–442 | Cite as

MLL/AF-1p Fusion in Therapy-Related Early Pre-B Acute Lymphoblastic Leukemia with t(1;11)(p32;q23) Translocation Developing in the Relapse Phase of Acute Promyelocytic Leukemia

  • Takayuki Tsujioka
  • Hideho Wada
  • Shunji Yamamori
  • Takemi Otsuki
  • Sinichiro Suemori
  • Toshinori Kondo
  • Hidekazu Nakanishi
  • Yoshimasa Suetsugu
  • Makoto Mikami
  • Takashi Sugihara
Case Report

Abstract

We report the development of therapy-related early pre-B acute lymphoblastic leukemia in a patient administered a topoisomerase II inhibitor, etoposide, a consolidation therapy agent for acute promyelocytic leukemia. Our case is of interest because of simultaneous relapse of the original leukemia and onset of therapy-related leukemia and relatively rare t(1;11) (p32;q23) translocation with confirmedMLL/AF- 1p fusion. This case suggests that careful monitoring forMLL gene rearrangements is necessary after administration of topoisomerase II inhibitors.

Key words

Therapy-related AL MLL AF- 1p FISH 

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Copyright information

© The Japanese Society of Hematology 2003

Authors and Affiliations

  • Takayuki Tsujioka
    • 1
  • Hideho Wada
    • 1
  • Shunji Yamamori
    • 2
  • Takemi Otsuki
    • 3
  • Sinichiro Suemori
    • 1
  • Toshinori Kondo
    • 1
  • Hidekazu Nakanishi
    • 1
  • Yoshimasa Suetsugu
    • 1
  • Makoto Mikami
    • 1
  • Takashi Sugihara
    • 1
  1. 1.Division of Hematology, Department of MedicineKawasaki Medical SchoolOkayamaJapan
  2. 2.Mitsubishi Kagaku Bio-clinical LaboratoriesTokyoJapan
  3. 3.Department of HygieneKawasaki Medical SchoolOkayamaJapan

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