Hemangioma of Intra-Abdominal Structure, also known as hemangioma, intra-abdominal, is related to spleen angiosarcoma and liver angiosarcoma. An important gene associated with Hemangioma of Intra-Abdominal Structure is SYNGAP1 (Synaptic Ras GTPase Activating Protein 1), and among its related pathways/superpathways are Metabolism of proteins and Nanog in Mammalian ESC Pluripotency. Related phenotypes are Decreased OCT4 protein expression and Decreased NANOG protein expression