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Lookup NU author(s): Professor Christine Harrison FRCPath FMedSci
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Seven new cases are described of near haploid acute lymphoblastic leukemia (ALL) and the findings reviewed together with updated complete remission duration and survival data for the 21 cases already published. The patients were four males and three females, with an age range 2-19 years; all had an immunophenotype consistent with common ALL. The poor prognostic outlook for patients with near haploid ALL is confirmed by the median remission duration of 14 months for these patients, which is comparable to that for the previously published cases. The pattern of chromosome loss was marked particularly by the presence of two copies of chromosomes 10, 14, 18, 21 and both sex chromosomes. Populations of hyperdiploid cells with double the near haploid number were observed in six of the patients, one of whom demonstrated further clonal evolution, and it is proposed that some cases classified as hyperdiploid ALL with greater than 50 chromosomes may also have arisen from a near haploid stem line.
Author(s): Gibbons B, MacCallum P, Watts E, Rohatiner AZ, Webb D, Katz FE, Secker-Walker LM, Temperley IJ, Harrison CJ, Campbell RH
Publication type: Article
Publication status: Published
Print publication date: 01/09/1991
ISSN (print): 0887-6924
ISSN (electronic): 1476-5551
Publisher: Nature Publishing Group