title: Cytogenetic findings in a patient presenting simultaneously with chronic lymphocytic leukemia and acute myeloid leukemia.
abstract: A case of simultaneous presentation of B-chronic lymphocytic leukemia (CLL) and acute myeloid leukemia (AML) is described. CLL was documented by bone marrow and peripheral blood lymphocytosis with a typical B-CLL immunophenotype. The diagnosis of AML was supported by the presence of bone marrow and circulating blast cells positive for myeloperoxidase and myeloid-associated markers. Although the immunophenotyping and morphocytochemical studies indicated two different cell populations (mature B-CLL lymphocytes and myeloblasts), chromosome aberrations commonly associated with CLL and AML were found simultaneously in the same metaphases obtained from unstimulated 24-hour cultures of peripheral blood cells.
authors.affiliation: Department of Clinical Hematology, S. António's Hospital, Porto, Portugal.
authors.forename: M
authors.initials: M
authors.lastname: Lima
authors.forename: B
authors.initials: B
authors.lastname: Porto
authors.forename: M
authors.initials: M
authors.lastname: Rodrigues
authors.forename: M A
authors.initials: MA
authors.lastname: Teixeira
authors.forename: J
authors.initials: J
authors.lastname: Coutinho
authors.forename: A C
authors.initials: AC
authors.lastname: Ribeiro
authors.forename: M I
authors.initials: MI
authors.lastname: Malheiro
authors.forename: B
authors.initials: B
authors.lastname: Justiça
mesh_terms: D000368:Aged; D002869:Chromosome Aberrations; D005260:Female; D006801:Humans; D016130:Immunophenotyping; D015451:Leukemia, Lymphocytic, Chronic, B-Cell / Q000235:genetics* / Q000276:immunology; D015470:Leukemia, Myeloid, Acute / Q000235:genetics* / Q000276:immunology