Intraosseous Spindle Cell/Epithelioid Rhabdomyosarcoma with TFCP2 Rearrangement: A Recent Recognized Subtype with Partial Response to Alectinib. - Valério E; Furtado Costa JL; Perez Fraile NM; Credidio CH; Taveira Garcia MR; Neto CS; Costa FD (International journal of surgical pathology, 2023)