Alveolar histology is associated with the fusion genes PAX3-FKHR and PAX7-FKHR.     ///    "There were 37 patients with t(2;13)/PAX3-FKHR, 8 with t(1;13) PAX7-FKHR and 46 with neither translocation. "    ///    "Variant t(1;13)/PAX7-FKHR appears biologically different, occurring in younger patients with more localised disease.. "