An extra small metacentric chromosome in association with multiple congenital abnormalities.
D000015:Abnormalities, Multiple / Q000235:genetics*; D001345:Autoradiography; D001789:Blood Group Antigens; D002648:Child; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D002902:Chromosomes, Human, 16-18; D002903:Chromosomes, Human, 19-20; D002904:Chromosomes, Human, 21-22 and Y; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics*; D007621:Karyotyping; D007962:Leukocytes / Q000166:cytology; D014314:Trisomy; D014316:Tritium
D001789:Blood Group Antigens; D014316:Tritium