Abstract:
:The karyotype of a boy with acute lymphoblastic leukemia (ALL) presenting with numerical and structural chromosome aberrations as determined by Giemsa-banding was further investigated using chromosome painting (CP). A translocation t(11;18)(q23;q21) was verified by this approach, and gain of chromosome 21 material due to a structural rearrangement was detected. Moreover, an unbalanced translocation of the long arm of chromosome 1, resembling the well known translocation t(1;19), was demonstrated to involve chromosome 22 instead of chromosome 19. Immunophenotyping of the leukemic blasts led to the diagnosis common ALL (CD19+, CD10+, clg-). Our case indicates that in ALL a translocation t(1;19) may be mimicked by other chromosomal rearrangements, and that CP may efficiently complement conventional cytogenetics in the exact characterization of the involved chromosomes.
journal_name
Leukemiajournal_title
Leukemiaauthors
Rieder H,Kolbus U,Koop U,Ludwig WD,Stollmann-Gibbels B,Fonatsch Csubject
Has Abstractpub_date
1993-10-01 00:00:00pages
1663-6issue
10eissn
0887-6924issn
1476-5551journal_volume
7pub_type
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