title: Bilateral absence of the ulna in twins as a manifestation of the split hand--split foot deformity.
abstract: Bilateral absence of the ulna and ulnar rays in twin female infants are described as a manifestation of the split hand--split foot deformity (ectrodactyly). Family history revealed the father had a unilateral split hand. Given the wide variability of expression of this disorder and the availability of prenatal diagnosis, there is a need for obstetricians and pediatricians to recognize parents with this malformation and appreciate the potential for severely affected offspring.
authors.affiliation: George Washington University School of Medicine, Washington, D.C.
authors.forename: R B
authors.initials: RB
authors.lastname: Beck
authors.forename: D S
authors.initials: DS
authors.lastname: Brudno
authors.forename: K N
authors.initials: KN
authors.lastname: Rosenbaum
mesh_terms: D004200:Diseases in Twins; D005260:Female; D005532:Foot Deformities, Congenital / Q000235:genetics*; D006228:Hand Deformities, Congenital / Q000235:genetics*; D006801:Humans; D007231:Infant, Newborn; D013577:Syndrome; D014457:Ulna / Q000002:abnormalities*