Hemophagocytosis by leukemic blasts in a case of acute megakaryoblastic leukemia with t(16;21)(p11;q22)

Int J Hematol. 1999 Jul;70(1):36-9.

Abstract

We report the case of a 2-year-3-month-old boy with acute megakaryoblastic leukemia showing hemophagocytosis by leukemic blasts. The chromosome analysis of his bone marrow revealed t(16;21)(p11;q22). In addition to the present case, we found 4 other acute myeloid leukemia (AML) cases associated with hemophagocytosis and t(16;21)(p11;q22) in the literature, of which 3 were megakaryoblastic. Although the syndrome of AML with FAB-M4/5 morphology, t(8;16)(p11;p13), and erythrophagocytosis is well known, leukemic blasts of FAB-M7 morphology showing t(16;21)(p11;q22) may be underscored for their phagocytic activity.

Publication types

  • Case Reports

MeSH terms

  • Child, Preschool
  • Chromosomes, Human, Pair 16
  • Chromosomes, Human, Pair 21
  • Histiocytosis, Non-Langerhans-Cell / etiology*
  • Histiocytosis, Non-Langerhans-Cell / pathology
  • Humans
  • Leukemia, Megakaryoblastic, Acute / genetics*
  • Leukemia, Megakaryoblastic, Acute / pathology
  • Male
  • Translocation, Genetic*