A very dangerous cancer which develops from striated muscle tissue. There are three major forms:

1. Alveolar rhabdosarcoma: this cancer, which most often afflicts adolescents, typically develops in the extremities, body or eye cavities.

2. Embryonal rhabdosarcoma: this cancer, which strikes infants and young children, develops in the head, neck, extremities or lower genitourinary tract.

3. Pleiomorphic rhabdosarcoma: this cancer strikes adults and typically develops in the extremities.