| | Childhood rhabdomyosarcoma |
 | | Rhabdomyosarcoma can be divided into several histologic subtypes: embryonal, embryonal-botryoid, alveolar, pleomorphic, and mixed histology.[1] The embryonal (including botryoid) subtype is the most frequently observed histologic subtype in children, accounting for approximately 80% of rhabdomyosarcomas of childhood. |
 | | Approximately 20% of children with rhabdomyosarcoma have the alveolar subtype, with an increased frequency of this subtype noted in adolescents and in patients with primary sites involving the extremities, trunk, and perineum/perirectal region.[1] Pleomorphic rhabdomyosarcoma occurs predominantly in patients aged 30-50 years and is rarely seen in children. |
 | | The combination of ifosfamide and etoposide has considerable activity in the treatment of recurrent rhabdomyosarcoma for children not previously treated with these agents.[3] Very intensive chemotherapy followed by autologous bone marrow re-infusion is also under investigation for patients with recurrent rhabdomyosarcoma. |
| www.uoc.muni.cz /guidelines/17sarkom/CHRHABSA.htm (4051 words) |