title: [Clinical report on diagnosis and treatment of 14 cases with pediatric Ewing's sarcoma family tumors].
abstract: OBJECTIVE
  To recognize and improve the outcome of childhood Ewing's sarcoma family tumors, and to identify the efficacy and safety of the chemotherapy using RS-2002 Protocol.
  
  
  METHODS
  From September 1997 to September 2006, 14 newly diagnosed patients with the tumors were admitted, 9 were boys, and 5 were girls, the median age was 7.04 years, ranging from 1.58 years to 11.67 years. Among them, 9 patients were younger than 10 years. By the time of diagnosis, 9 patients had local diseases, and the other 5 patients had metastatic diseases. All the patients' diagnoses were confirmed by pathological studies. Nine patients had Ewing's sarcoma by histology, and the other 5 patients had peripheral primitive neuroectodermal tumors (PPNET). All of the patients were treated with multidisciplinary therapy, and RS-2002 Protocol for chemotherapy was used to treat patients with rhabdomyosarcoma in our hospital. Surgery and irradiation were performed for local control. Imaging studies were used for evaluation, reevaluation and follow-up.
  
  
  RESULTS
  Till April 30th 2007, 13/14 patients survived. The median follow-up time was 41 months (range: 7 months-115 months). The 10-year overall survival (OS) was 88.9%+/-10.5%, and the 10-year disease-free-survival (DFS) was 72.2%+/-13.8%; 3/14 patients had disease relapse, the median time to relapse from initial diagnosis was 23 months (range: 16-30 months). One patient developed second malignancy. No therapy related death was documented.
  
  
  CONCLUSIONS
  Childhood Ewing's sarcoma family tumors were not very rare, and the prognosis was acceptable with optimal treatment. RS-2002 Protocol was effective and safe in treating such patients.
authors: Department of Hematology/Oncology, Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200127, China.
authors: Ci
authors: C
authors: Pan
authors: Jing-yan
authors: JY
authors: Tang
authors: Hui-liang
authors: HL
authors: Xue
authors: Jing
authors: J
authors: Chen
authors: Lu
authors: L
authors: Dong
authors: Min
authors: M
authors: Zhou
authors: Qi-dong
authors: QD
authors: Ye
authors: Yao-ping
authors: YP
authors: Wang
mesh_terms: D002648:Child; D002675:Child, Preschool; D003131:Combined Modality Therapy; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D012512:Sarcoma, Ewing / Q000628:therapy*; D016896:Treatment Outcome