The authors found cytoplasmic positivity for desmin and nuclei positivity for myogenin, in embryonal rhabdomyosarcoma, and also in one case positivity for MyoD1 (Peters S., Silva J., Morales L., Beghdad M., Bhandarkar A.,and Shahidatul-Adha M.). This evidence concerns the gene DES and embryonal rhabdomyosarcoma.