title: Cytogenetic findings in two new cases of hepatoblastoma.
abstract: We describe two cases of hepatoblastoma occurring in an 18-month-old boy and a 3-month-old girl. Cytogenetic analysis of the primary tumors revealed gain of 2q and 20 in both cases. In case 1, t(7;8;11) was seen as a secondary abnormality. Other chromosomal aberrations seen in case 2 were unbalanced t(1;1) and t(2;11), resulting in partial gains of 1q and 2q. These results support previous reports that gains of 2q and 20 and rearrangement of chromosome 1 are strongly associated with hepatoblastoma and may be essential for establishing this neoplasm. The 11q and 7q abnormalities may represent a pathway of genetic evolution associated with hepatoblastoma progression.
authors.affiliation: Department of Pathology, Cytogenetics Laboratory, Detroit Medical Center, Wayne State University, Detroit, MI 48201, USA.
authors.forename: Wassim
authors.initials: W
authors.lastname: Ali
authors.forename: Süreyya
authors.initials: S
authors.lastname: Savasan
authors.forename: Raja
authors.initials: R
authors.lastname: Rabah
authors.forename: Anwar N
authors.initials: AN
authors.lastname: Mohamed
mesh_terms: D002869:Chromosome Aberrations; D002878:Chromosomes, Human, Pair 1 / Q000235:genetics; D002880:Chromosomes, Human, Pair 11 / Q000235:genetics; D002889:Chromosomes, Human, Pair 2 / Q000235:genetics*; D002890:Chromosomes, Human, Pair 20 / Q000235:genetics*; D002897:Chromosomes, Human, Pair 7 / Q000235:genetics; D002898:Chromosomes, Human, Pair 8 / Q000235:genetics; D005260:Female; D018197:Hepatoblastoma / Q000235:genetics*; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D007223:Infant; D007621:Karyotyping; D008113:Liver Neoplasms / Q000235:genetics*; D008297:Male; D014178:Translocation, Genetic; D014314:Trisomy