A syndrome characterized by neurofibromatosis and manifestations of Noonan syndrome, including short stature, ptosis, midface hypoplasia, webbed neck, learning disabilities, and muscle weakness, that has_material_basis_in heterozygous mutation in NF1 on chromosome 17q11.2. [ http://purl.obolibrary.org/obo/ECO_0007645 https://www.ncbi.nlm.nih.gov/pubmed/12707950 ]