45,X/47,XYY mosaicism.
This paper describes and discusses the clinical and cytogenetic findings in an infant with an unusual sex chromosome abnormality 45X/47XYY.
D012734:Disorders of Sex Development / Q000235:genetics*; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009030:Mosaicism; D010641:Phenotype; D012729:Sex Chromosome Aberrations / Q000235:genetics*; D012732:Sex Determination Analysis