label: Fusion-Positive Alveolar Rhabdomyosarcoma
label_lc: fusion-positive alveolar rhabdomyosarcoma
description: An alveolar rhabdomyosarcoma characterized by the presence of chromosomal translocation t(1;13)(p36;q14) that results in PAX7-FOXO1 gene fusion; or translocation t(2;13)(q35;q14) that results in PAX3-FOXO1 gene fusion.  Approximately 80% of alveolar rhabdomyosarcomas are fusion-positive.