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  • Title: Acute nonlymphocytic leukemia with marrow eosinophilia and chromosome 16 abnormality: a report of 18 cases.
    Author: Bernard P, Dachary D, Reiffers J, Marit G, Wen Z, Jonveaux P, David B, Lacombe F, Broustet A.
    Journal: Leukemia; 1989 Oct; 3(10):740-5. PubMed ID: 2779289.
    Abstract:
    This article reports 18 cases of acute nonlymphocytic leukemia (ANLL) and abnormal chromosome 16. Thirteen had the same hematological pattern at diagnosis, i.e., peripheral blood hyperleukocytosis with high percentage of monocytes and blast cells, and bone marrow showing three different cell populations: (a) myeloblasts, (b) monocytes and promonocytes, and (c) abnormal eosinophils. In these cases the diagnosis was acute myelomonocytic leukemia with bone marrow eosinophilia, as described. However three other cases were of the M5 type and two others of the M2 type, all showing an abnormal eosinophilia in their bone marrow. All cases showed an abnormal chromosome 16 in the bone marrow cells: inv (16) in 13 cases, t (16;16) in two, del (16) in one of poor quality, and in two other translocations involving band 16q22. In one case the inv (16) was found in a subclone, indicating that it could be a secondary cytogenetic defect. Five patients died soon after diagnosis; the other 13 had a median complete remission duration of 8 months. The central nervous system was frequently involved upon relapse. We do not support the hypothesis that patients with M4-Eo ANLL and chromosome 16 abnormality have a favorable prognosis.
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