Noonan Syndrome with Multiple Lentigines, also known as leopard syndrome, is related to lentigines and noonan syndrome 1, and has symptoms including hyposmia and seizures. An important gene associated with Noonan Syndrome with Multiple Lentigines is PTPN11 (Protein Tyrosine Phosphatase Non-Receptor Type 11), and among its related pathways/superpathways are Infectious disease and ERK Signaling. Affiliated tissues include skin and heart, and related phenotypes are intellectual disability and hypertelorism