Cerebellopontine Angle Primitive Neuroectodermal Tumor, also known as cerebellopontine angle pnet, is related to neurilemmoma and ewing sarcoma. An important gene associated with Cerebellopontine Angle Primitive Neuroectodermal Tumor is CD99 (CD99 Molecule (Xg Blood Group)), and among its related pathways/superpathways are Neuroscience and Neural Stem Cells and Lineage-specific Markers.