Mosaic mongolism.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001773:Blood Cells; D002648:Child; D002675:Child, Preschool; D002869:Chromosome Aberrations; D004314:Down Syndrome; D005260:Female; D006801:Humans; D007223:Infant; D008423:Maternal Age; D009030:Mosaicism; D012867:Skin; D014314:Trisomy