Angiokeratoma Circumscriptum is related to angiokeratoma and capillary lymphangioma. An important gene associated with Angiokeratoma Circumscriptum is SYNGAP1 (Synaptic Ras GTPase Activating Protein 1), and among its related pathways/superpathways are Signal Transduction and RAF/MAP kinase cascade. Affiliated tissues include skin and tongue, and related phenotypes are nervous system and homeostasis/metabolism