Near-tetraploid poorly differentiated acute myeloid leukemia M0 diagnosed by short-term cultures with a phorbol ester TPA.

Abstract:

:Leukemic blasts of two patients with acute leukemia exhibited similar characteristics. They were heterogeneous in size with a diameter of 14-30 microns in smears and unclassifiable by morphological, cytochemical, immunophenotypic and ultrastructural examinations. Cytogenetic examinations of both revealed a near-tetraploid karyotype. Blasts from both patients differentiated into macrophages in cultures with 10 ng/ml 12-O-tetradecanoylphorbol-13-acetate (TPA) which is a feature specific for myeloid blasts and the cases were thus classified as poorly differentiated acute myeloid leukemias (AML M0). Near-tetraploid poorly differentiated acute myeloid leukemias M0 seem to be a special category of AML in the morphologic, immunologic and cytogenetic (MIC) classification. The presence of very large blasts in the heterogeneous blast population in acute unclassified leukemias could be a morphological sign of near-tetraploid leukemias AML M0.

journal_name

Leuk Res

journal_title

Leukemia research

authors

Lemez P,Jelínek J,Michalová K,Koubek K,Schwarz J,Malasková V,Rypácková B,Jirásek A,Brezinová J,Hrabánek J

doi

10.1016/0145-2126(94)90087-6

subject

Has Abstract,Author List Incomplete

pub_date

1994-07-01 00:00:00

pages

493-7

issue

7

eissn

0145-2126

issn

1873-5835

journal_volume

18

pub_type

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