Simpson–Golabi–Behmel syndrome type 1 in a 27-week macrosomic preterm newborn: The diagnostic value of rib malformations and index nail and finger hypoplasia†
2012
The Simpson–Golabi–Behmel syndrome type 1 (SGBS1, OMIM #312870) is an X-linked overgrowth condition comprising abnormal facial appearance, supernumerary nipples, congenital heart defects, polydactyly, fingernail hypoplasia, increased risk of neonatal death and of neoplasia. It is caused by mutation/deletion of the GPC3 gene. We describe a macrosomic 27-week preterm newborn with SGBS1 who presents a novel GPC3 mutation and emphasize the phenotypic aspects which allow a correct diagnosis neonatally in particular the rib malformations, hypoplasia of index finger and of the same fingernail, and 2nd–3rd finger syndactyly. © 2012 Wiley Periodicals, Inc.
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