The t(10;11)(p14;q21) translocation in three children with acute myeloblastic leukemia.

A total of 161 cases of pediatric de novo acute myeloblastic leukemia (AML) have been reviewed, for which complete karyotyping was available and three cases (2%) were identified with t(10;11)(p14;q21). Two of the three children were infants with monoblastic (FAB M5) leukemia and the third was an adolescent with undifferentiated myeloid (FAB M1) leukemia. Both infants presented with increased levels of lactate dehydrogenase. None of these cases had increased eosinophils. One of the infants is in remission 18+ months after diagnosis and intensive chemotherapy; the two other children attained brief initial remissions but succumbed to their disease within 11 months of diagnosis. The prognosis of such children appears to be similar to that of cases of AML lacking this translocation.