title: Ovarian germ cell tumor evolving to myelodysplasia.
abstract: We present the case of a 14-year-old girl in whom a myelodysplastic syndrome was diagnosed 9 months after surgical resection and chemotherapy for an ovarian germ cell tumor. Cells from her marrow were characterized by trisomy 8 and an isochromosome 12p, a marker that appears to be unique to germ cell tumors. The presence of the same two anomalies in her original tumor was demonstrated by fluorescence in situ hybridization study of interphase cells in paraffin-embedded tissues and thus provided strong evidence that the two neoplasms had a common clonal origin.
authors.affiliation: Department of Genetic Services, Children's Hospital, San Diego, CA 92123.
authors.forename: J T
authors.initials: JT
authors.lastname: Mascarello
authors.forename: T R
authors.initials: TR
authors.lastname: Cajulis
authors.forename: G F
authors.initials: GF
authors.lastname: Billman
authors.forename: W E
authors.initials: WE
authors.lastname: Spruce
mesh_terms: D000293:Adolescent; D002871:Chromosome Banding; D002881:Chromosomes, Human, Pair 12; D002898:Chromosomes, Human, Pair 8; D002999:Clone Cells; D003131:Combined Modality Therapy; D005260:Female; D006801:Humans; D007621:Karyotyping; D009190:Myelodysplastic Syndromes / Q000209:etiology*; D009373:Neoplasms, Germ Cell and Embryonal / Q000150:complications / Q000188:drug therapy / Q000235:genetics* / Q000601:surgery; D010051:Ovarian Neoplasms / Q000150:complications / Q000188:drug therapy / Q000235:genetics* / Q000601:surgery; D014314:Trisomy