Intraosseous Spindle Cell Rhabdomyosarcoma with TFCP2/NCOA2 Rearrangements

**Semantic type:** Neoplastic Process

**Definition:** Intraosseous spindle cell rhabdomyosarcoma characterized by the fusion of the EWSR1 or FUS gene with the TFCP2 gene, or the MEIS1 gene with the NCOA2 gene.