Beckwith-Wiedemann syndrome and assisted reproduction technology (ART)

Beckwith-Wiedemann syndrome and assisted reproduction technology (ART).

Beckwith-Wiedemann syndrome (BWS) is a model imprinting disorder resulting from mutations or epimutations affecting imprinted genes on chromosome 11p15.5. The classical clinical features of BWS are macroglossia, preand/or postnatal overgrowth, and anterior abdominal wall defects (umbilical hernia or exomphalos). Additional more variable features include hemihypertrophy, neonatal hypoglycaemia, ...

[Beckwith-Wiedemann syndrome].

Beckwith-Wiedemann syndrome.

some llp15.3-.pter and monosomic for chromosome 5p15.3-.pter (karyotype 46,XY,der(5)t(5;ll)(pl5.3;pl5.3)pat). Paternally derived duplications of llpl5.5 are associated with Beckwith-Wiedemann syndrome (BWS) and both family members trisomic for llpl5.5 had prenatal overgrowth (birth weights >97th centile), macroglossia, coarse facial features, and broad hands. We review the clinical features of ...

Beckwith-Wiedemann Syndrome

Beckwith-wiedemann Syndrome and Hemihyperplasia

BeckwithWiedemann syndrome, characterized by the triad of omphalocele, macroglossia, and gigantism, has a population incidence estimated at 1/13,700. This is likely an underestimate, because individuals with milder phenotypes may not be diagnosed. Some cases of isolated hemihyperplasia may, in fact, represent BeckwithWiedemann syndrome with reduced expressivity. Additional clinical features of ...