title: Esthesioneuroblastoma in pediatric and adolescent age. A report from the TREP project in cooperation with the Italian Neuroblastoma and Soft Tissue Sarcoma Committees.
abstract: BACKGROUND
  Esthesioneuroblastoma (ENB) is a rare, aggressive tumor with no established treatment in children. We analyzed a series of pediatric ENB patients with the aim of improving our knowledge of this disease.
  
  
  METHODS
  9 patients (6 males; age 0.9-18 years, median 9.9) were identified by searching the AIEOP (Italian Association of Pediatric Hematology and Oncology) registry and the national databases of rare tumors, soft tissue sarcomas (STS) and neuroblastomas. The data on the cases included in STS treatment protocols were collected prospectively and histology was centrally reviewed; the data and histology concerning the other children were reviewed for the purpose of this analysis.
  
  
  RESULTS
  All tumors occurred in the sinonasal region with bone erosion (7 patients) and intracranial (4) or intraorbital (4) extension. Three patients were in Kadish stage B, and 6 in stage C. Complete tumor resection was very difficult to achieve, but adding chemotherapy and radiotherapy enabled tumor control in 8 patients. Response to chemotherapy was evident in 5/7 evaluable cases. Radiotherapy (48.5-60 Gy) was delivered in all children but one, due to early disease progression. With a median follow-up of 13.4 years (range 9.2-22.9), 7 patients are alive in 1st and one in 2nd complete remission. All surviving patients developed treatment-related sequelae, the most frequent being endocrine dysfunctions (4 patients) and craniofacial growth impairments (4 patients).
  
  
  CONCLUSIONS
  Our findings confirm that ENB in children has an aggressive presentation, but multimodal therapy can cure most patients. Our results are encouraging but future strategies must optimize treatment in terms of survival and related morbidities.
authors.affiliation: Hematology/Oncology Division, Department of Pediatrics, University, Hospital of Padova, Padova, Italy. gianni.bisogno@unipd.it
authors.forename: Gianni
authors.initials: G
authors.lastname: Bisogno
authors.forename: Pietro
authors.initials: P
authors.lastname: Soloni
authors.forename: Massimo
authors.initials: M
authors.lastname: Conte
authors.forename: Marta
authors.initials: M
authors.lastname: Podda
authors.forename: Andrea
authors.initials: A
authors.lastname: Ferrari
authors.forename: Alberto
authors.initials: A
authors.lastname: Garaventa
authors.forename: Roberto
authors.initials: R
authors.lastname: Luksch
authors.forename: Giovanni
authors.initials: G
authors.lastname: Cecchetto
mesh_terms: D000293:Adolescent; D000970:Antineoplastic Agents / Q000627:therapeutic use; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D002648:Child; D002675:Child, Preschool; D003131:Combined Modality Therapy / Q000379:methods; D018304:Esthesioneuroblastoma, Olfactory / Q000473:pathology / Q000628:therapy*; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D009296:Nasal Cavity; D009669:Nose Neoplasms / Q000473:pathology / Q000628:therapy*; D016019:Survival Analysis
chemical_list: D000970:Antineoplastic Agents