title: Cytogenetic analysis of primitive neuroectodermal tumors. Absence of the t(11;22) in two of three cases and a review of the literature.
abstract: Cytogenetic analyses on direct and short-term cultures from three peripheral primitive neuroectodermal tumors (PNET) showed only one tumor with the t(11;22)(q24;q12), a translocation reported as characteristic of this tumor type. A second tumor contained rearrangements including apparent deletions of chromosomes 11 and 22 between bands 11q21 and 11qter and between bands 22q11.2 and 22qter, respectively. A third tumor contained two normal copies of 11q but appeared to be monosomic for 22. We consider these findings in light of a survey of the PNET literature.
authors.affiliation: Imperial Cancer Research Fund, Lincoln's Inn Fields, London, England.
authors.forename: P A
authors.initials: PA
authors.lastname: Gorman
authors.forename: M
authors.initials: M
authors.lastname: Malone
authors.forename: J
authors.initials: J
authors.lastname: Pritchard
authors.forename: D
authors.initials: D
authors.lastname: Sheer
mesh_terms: D000293:Adolescent; D002675:Child, Preschool; D002880:Chromosomes, Human, Pair 11; D002892:Chromosomes, Human, Pair 22; D005260:Female; D006801:Humans; D007223:Infant; D007621:Karyotyping; D018241:Neuroectodermal Tumors, Primitive, Peripheral / Q000235:genetics*; D013899:Thoracic Neoplasms / Q000235:genetics*; D014178:Translocation, Genetic; D014407:Tumor Cells, Cultured