RBFOX3 and neoplasm: Histologically, this tumor features an expansive growth pattern and is composed of polygonal cells with abundant cytoplasm, spindle cells, gemistocyte‐like cells, or ganglionic‐like cells that express both glial GFAP and neural (synaptophysin, neurofilament protein, beta‐tubulin III, SOX2, and NeuN) markers.1