Hennekam Syndrome, also known as lymphedema-lymphangiectasia-intellectual disability syndrome, is related to hereditary lymphedema i and lymphatic malformation 1. An important gene associated with Hennekam Syndrome is CCBE1 (Collagen And Calcium Binding EGF Domains 1), and among its related pathways/superpathways are Extracellular matrix organization and Angiogenesis (CST). Affiliated tissues include skin and thyroid, and related phenotypes are intellectual disability and depressed nasal bridge