title: Ullrich-Turner syndrome in monozygotic twins.
abstract: We report on the Ullrich-Turner syndrome in monozygotic twin sisters. The first twin had the syndrome with a 45,X chromosome constitution. The second twin had only minor manifestations of the syndrome with 46,XX/45,X mosaicism. The literature on the Ullrich-Turner syndrome in twins is reviewed.
mesh_terms: D001788:Blood Grouping and Crossmatching; D002648:Child; D004200:Diseases in Twins; D005260:Female; D006650:Histocompatibility Testing; D006801:Humans; D007621:Karyotyping; D009030:Mosaicism; D009634:Noonan Syndrome / Q000235:genetics*; D010641:Phenotype; D011247:Pregnancy; D014430:Twins, Monozygotic