Isolated intestinal ganglioneuromatosis with a new mutation of RET proto-oncogene

Eur J Gastroenterol Hepatol. 2006 Jul;18(7):803-5. doi: 10.1097/


A 13-year-old boy with a history of juvenile polyps of the colon was subsequently found to have isolated intestinal ganglioneuromatosis without any other features characteristic of multiple endocrine neoplasia (MEN) 2B. Screening for MEN 2B revealed a polymorphism of the RET proto-oncogene at codon 691 with a glycine to serine conversion. This mutation has not been described before in association with ganglioneuromatosis and MEN 2B. The phenotype and presentation are compared with those of previous case reports.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Adolescent
  • Child
  • Colonic Neoplasms / genetics*
  • Female
  • Ganglioneuroma / genetics*
  • Genetic Predisposition to Disease
  • Humans
  • Infant, Newborn
  • Male
  • Multiple Endocrine Neoplasia Type 2b / genetics*
  • Mutation*
  • Proto-Oncogene Mas
  • Proto-Oncogene Proteins c-ret / genetics*


  • MAS1 protein, human
  • Proto-Oncogene Mas
  • Proto-Oncogene Proteins c-ret