BCOR-ITD and YWHAE-rearranged tumors define an infantile SRCS subset with truncal/abdominopelvic predilection, aggressive behavior, and characteristic immunophenotypes (BCOR, cyclin D1, SATB2), overlapping morphologically with clear cell sarcoma of the kidney [57,59,60]. The gene discussed is CCND1; the disease is clear cell sarcoma of kidney.