title: Chromosome 5 abnormalities in acute lymphoblastic leukemia.
abstract: We report two cases of acute lymphoblastic leukemia with involvement of chromosome 5. One of them showed a del(5)(q13q33) in a 5-year-old boy who had previously received antineoplastic chemotherapy for an L1-ALL that had been diagnosed nine months before. The other one showed a t(5;7)(q12-13;q36) together with a t(8;14)(q24;q32) and a der(1) in a 66-year-old man with an L3-ALL. Both chromosome 5 aberrations are interpreted as evolutionary events. In the first case, it was secondary to chemotherapy treatment; in the second, an evolutionary chromosome rearrangement, considering the translocation between chromosomes 8 and 14 as the primary cytogenetic event.
authors.affiliation: Unidad de Genética, Hospital La Fe, Valencia, Spain.
authors.forename: F
authors.initials: F
authors.lastname: Palau
authors.forename: F
authors.initials: F
authors.lastname: Prieto
authors.forename: L
authors.initials: L
authors.lastname: Badia
authors.forename: M
authors.initials: M
authors.lastname: Beneyto
authors.forename: I
authors.initials: I
authors.lastname: Benet
mesh_terms: D002675:Child, Preschool; D002869:Chromosome Aberrations; D002871:Chromosome Banding; D025063:Chromosome Disorders; D002895:Chromosomes, Human, Pair 5; D006801:Humans; D007621:Karyotyping; D008297:Male; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000235:genetics* / Q000276:immunology / Q000473:pathology