Rhabdomyosarcoma : Classification
Histologic Classification: A variety of classification schemes for rhabdomyosarcomas (RMS) have been proposed over the years by different groups. The International Classification of Rhabdomyosarcoma categorizes various subtypes into prognostic groups. Any alveolar architecture or cytology earns the tumor an alveolar designation. Pleomorphic RMS is excluded in this classification since it is uncommon in children.
- Superior Prognosis (botryoid, spindle cell)
- Intermediate Prognosis (embryonal)
- Poor Prognosis (alveolar, undifferentiated sarcoma)
- Prognosis Not Presently Evaluable (rhabdoid)
- Spindle Cell/Sclerosing