NCIt definition : An aggressive, high-grade rhabdomyosarcoma characterized by TFCP2 rearrangement that
results either in TFCP2-FUS or TFCP2-EWSR1 fusion gene formation. It affects young
adults and arises from bone and less frequently soft tissue. It predominantly affects
the craniofacial bones. Histologically, it usually shows a biphasic pattern with spindle
and epithelioid cell areas. It is associated with poor prognosis.;