sodium-ethylxanthate and Turner-Syndrome

We report on monozygotic (MZ) twins who were discordant for phenotypic sex and Ullrich-Turner syndrome (UTS). The nonviable female was hydropic with cystic hygromas, ventricular septal defect, bicuspid aortic valve, polysplenia, intestinal malrotation, and small ovaries. The male was phenotypically normal. The monochorionic, diamniotic placenta had hydropic changes limited to the UTS infant's side. Skin samples from the infants and blood from their parents were obtained for cytogenetic and molecular analysis. Karyotypes of the twins were 45,X and 46,XY. Quinacrine polymorphisms on 7 chromosomes and RFLP analysis at 8 loci showed complete identity. MZ twins discordant for phenotypic sex have been described previously. Most of these show evidence of mosaicism in a 45,X patient with a normal 46,XY cell line, and a normal 46,XY male. While the issue of mosaicism in our case cannot be fully resolved, no mosaicism was found in 50 cells analyzed cytogenetically from each culture or by PCR analysis of a Y-specific sequence. The twins probably originated from either postzygotic nondisjunction or anaphase lag, followed or accompanied by twinning. The discordant placental morphology suggests an embryonic origin of at least part of the placental mesenchymal core.

Topics: Abnormalities, Multiple; Chorionic Villi; Chromosome Deletion; Diseases in Twins; DNA Fingerprinting; DNA Probes; Female; Humans; Hydrops Fetalis; Infant, Newborn; Male; Mitosis; Mosaicism; Placenta Diseases; Polymorphism, Restriction Fragment Length; Pregnancy; Sex; Turner Syndrome; Twins, Monozygotic; X Chromosome

Topics: Adolescent; Adrenal Hyperplasia, Congenital; Adrenocortical Hyperfunction; Adult; Child; Child, Preschool; Disorders of Sex Development; Female; Humans; Male; Role; Sex; Sex Characteristics; Sex Determination Analysis; Socialization; Turner Syndrome; USSR

Topics: Disorders of Sex Development; Environment; Female; Gonadal Steroid Hormones; Gonads; Homosexuality; Humans; Karyotyping; Male; Sex; Sex Characteristics; Sex Chromosomes; Sexual Behavior; Transsexualism; Turner Syndrome

Topics: Adult; Behavior; Cognition; Female; Humans; Identification, Psychological; Intelligence; Klinefelter Syndrome; Male; Personality; Personality Development; Psychological Tests; Psychosexual Development; Role; Self Concept; Sex; Sexual Behavior; Turner Syndrome; Verbal Behavior

Topics: Abnormalities, Multiple; Cryptorchidism; Dwarfism; Female; Humans; Intelligence; Intelligence Tests; Male; Personality Development; Psychopathology; Sex; Turner Syndrome

Topics: Female; Genes, Recessive; Humans; Male; Sex; Sex Chromosome Aberrations; Sex Chromosomes; Sex Factors; Spatial Behavior; Turner Syndrome; Verbal Behavior

Topics: Adolescent; Cataract; Glaucoma; Gonioscopy; Humans; Intraocular Pressure; Karyotyping; Male; Myopia; Refraction, Ocular; Retinal Detachment; Sex; Turner Syndrome

Topics: 17-Ketosteroids; Adolescent; Chromosomes; Cryptorchidism; Gonadotropins; Humans; Male; Sex; Sex Chromatin; Sexual Infantilism; Turner Syndrome; Urine

Topics: Abnormalities, Multiple; Child; Chromosome Aberrations; Chromosome Disorders; Cytogenetic Analysis; Genetics, Medical; Humans; Infant; Infant, Newborn; Male; Malignant Hyperthermia; Pathology; Pterygium; Sex; Sex Chromatin; Skin Abnormalities; Testis; Turner Syndrome

Topics: Blood Group Antigens; Humans; Klinefelter Syndrome; Sex; Turner Syndrome