title: Clinical and cytogenetic studies of two cases of Klinefelter syndrome with hereditary retinoblastoma and rhabdomyosarcoma.
abstract: Two children with Klinefelter syndrome (KS), one associated with bilateral hereditary retinoblastoma (RB) and the other with rhabdomyosarcoma (RMS) are reported. Both were boys and chromosomally mosaic for KS. The hereditary retinoblastoma case yielded 46,XY,del(13)(q12q14.2)/47, XXY(c),del(13)(q12q14.2) in PHA-stimulated lymphocytes. The rhabdomyosarcoma case yielded 46,XY/ 47,XXY(c) in peripheral blood cells whereas tumor revealed trisomy 8, trisomy 7, and t(7;13)(q33;q32) in addition to 46,XY/47,XXyc mosaicism.
authors.affiliation: University of Istanbul, Departments of Cancer, Genetics, Turkey.
authors.forename: G
authors.initials: G
authors.lastname: Oğur
authors.forename: Z
authors.initials: Z
authors.lastname: Sengun
authors.forename: G
authors.initials: G
authors.lastname: Arel-Kiliç
authors.forename: C
authors.initials: C
authors.lastname: De Busscher
authors.forename: S
authors.initials: S
authors.lastname: Başaran
authors.forename: U
authors.initials: U
authors.lastname: Ozbek
authors.forename: I
authors.initials: I
authors.lastname: Ayan
authors.forename: E
authors.initials: E
authors.lastname: Sariban
authors.forename: E
authors.initials: E
authors.lastname: Vamos
mesh_terms: D002675:Child, Preschool; D002869:Chromosome Aberrations; D002882:Chromosomes, Human, Pair 13; D002897:Chromosomes, Human, Pair 7; D005134:Eye Neoplasms / Q000235:genetics*; D006801:Humans; D007713:Klinefelter Syndrome / Q000235:genetics*; D008297:Male; D012175:Retinoblastoma / Q000235:genetics*; D012208:Rhabdomyosarcoma / Q000235:genetics*