A Noonan syndrome that has_material_basis_in caused by heterozygous mutation in the RIT1 gene on chromosome 1q22. [ url:https://www.ncbi.nlm.nih.gov/pubmed/24939608 url:https://www.ncbi.nlm.nih.gov/pubmed/25124994 http://purl.obolibrary.org/obo/ECO_0007645 ]
Synonyms: NS8