title: Four new cases of ring 21 and 22 including familial transmission of ring 21.
abstract: Four new cases of ring G chromosomes are presented including one family in which the ring 21 is present in a mother and in her daughter, who has 47, XXX, r(21) chromosomes. The clinical and dermatoglyphic findings in r21 and r22 syndromes are reviewed.
mesh_terms: D002675:Child, Preschool; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D002904:Chromosomes, Human, 21-22 and Y; D003878:Dermatoglyphics; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D012730:Sex Chromosomes