Leopard Syndrome 1, also known as noonan syndrome with multiple lentigines 1, is related to noonan syndrome 1 and noonan syndrome with multiple lentigines, and has symptoms including hyposmia An important gene associated with Leopard Syndrome 1 is PTPN11 (Protein Tyrosine Phosphatase Non-Receptor Type 11), and among its related pathways/superpathways is Interleukin-37 signaling. Affiliated tissues include ovary and heart, and related phenotypes are hypertelorism and multiple lentigines