Giant cell lesions in noonan syndrome: case report and review of the literature

Head Neck Pathol. 2010 Jun;4(2):174-7. doi: 10.1007/s12105-010-0178-2. Epub 2010 Apr 11.

Abstract

Noonan-like/multiple giant cell lesion syndrome (NS/MGCLS) is a rare condition with phenotypic overlap with Noonan syndrome (NS). Once thought to be a specific and separate entity, it is now suggested to be a variant of the NS spectrum. We report a patient with classical cardinal features of NS, including short stature, mild ptosis, hypertelorism, down-slating palpebral fissures, low-set and posteriorly angulated ears, short neck, pectus excavatum, widely spaced nipples and cryptochidism, which were associated with bilateral central giant cell lesions in the mandible and germ-line mutation (C218T, Thr73Ile) in the exon 3 of the PTPN11 gene. The similar clinical and genetic aspects support the observation that NS/MGCLS is a variant of NS and giant cell lesions are an integrant part of this disorder.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Child
  • Germ-Line Mutation
  • Giant Cells / pathology*
  • Humans
  • Male
  • Mandible / pathology*
  • Noonan Syndrome / genetics
  • Noonan Syndrome / pathology*
  • Protein Tyrosine Phosphatase, Non-Receptor Type 11 / genetics

Substances

  • PTPN11 protein, human
  • Protein Tyrosine Phosphatase, Non-Receptor Type 11