Case Report: A Unique Case of Pediatric Central Nervous System Embryonal Tumor Harboring the <i>CIC</i>-<i>LEUTX</i> Fusion, Germline <i>NBN</i> Variant and Somatic <i>TSC2</i> Mutation: Expanding the Spectrum of <i>CIC</i>-Rearranged Neoplasia. The gene discussed is TSC2; the disease is neoplasm.