Gorham's Disease, also known as osteolysis, essential, is related to osteonecrosis and primary lymphedema. An important gene associated with Gorham's Disease is RASA1 (RAS P21 Protein Activator 1), and among its related pathways/superpathways are TGF-Beta Pathway and Response to elevated platelet cytosolic Ca2+. The drug Endothelial Growth Factors has been mentioned in the context of this disorder. Affiliated tissues include bone and endothelial, and related phenotypes are immune system and cardiovascular system