De novo partial monosomy 21 with unusual karyotype.
D000015:Abnormalities, Multiple / Q000235:genetics*; D000016:Abnormalities, Radiation-Induced / Q000235:genetics; D002869:Chromosome Aberrations / Q000235:genetics*; D002871:Chromosome Banding; D002872:Chromosome Deletion; D025063:Chromosome Disorders; D002904:Chromosomes, Human, 21-22 and Y / Q000648:ultrastructure*; D003241:Consanguinity; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008607:Intellectual Disability / Q000235:genetics*; D009006:Monosomy; D009030:Mosaicism