Clinical and molecular aspects of the Simpson-Golabi-Behmel syndrome

Giovanni Neri, Fiorella Gurrieri, Ginevra Zanni, Angela Lin

Research output: Contribution to journalArticlepeer-review


The Simpson-Golabi-Behmel syndrome (SGBS) is an overgrowth/multiple congenital anomalies/dysplasia syndrome caused by a mutant X-linked gene. The spectrum of its clinical manifestations is broad, varying from very mild forms in carrier females to infantile lethal forms in affected males. A typically affected male will show tall stature, 'coarse' face, supernumerary nipples, congenital heart defect, and generalized muscular hypotonia. Mental development is normal in most cases. There is an increased risk of neoplasia in infancy, especially Wilms tumor. The SGBS gene spans 500 kilobases in the Xq26 region and contains eight exons. It encodes an extracellular proteoglycan, designated glypican 3 (GPC3), capable of interacting with the insulin-like growth factor IGF2. At present, only deletions of various sizes have been found in a number of affected families.

Original languageEnglish
Pages (from-to)279-283
Number of pages5
JournalAmerican Journal of Medical Genetics
Issue number4
Publication statusPublished - Oct 2 1998


  • Overgrowth
  • SGBS
  • Simpson-Golabi-Behmel syndrome
  • Wilms tumor
  • X-linkage

ASJC Scopus subject areas

  • Genetics(clinical)


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