title: [Interdisciplinary therapy management in malignancy of the paranasal sinus tumors in children].
abstract: BACKGROUND
  Malignant tumors of the paranasal sinuses, such as rhabdomyosarcoma or Ewing's tumors, often have a mesenchymal origin. In the recent years, several prospective, randomized, multicenter studies have demonstrated a better outcome after new oncology therapy protocols.
  
  
  RESULTS
  In the period from January 2000 to June 2001, we operated 610 patients with sinus disease. Only 23/610 were children or teenagers (3.8%). Half of the juvenile group suffered from chronic sinusitis, but 5/23 (22%) had a malignoma of the paranasal sinuses. In the adult population, malignoma was diagnosed in less than 1% of cases. We diagnosed and treated, in cooperation with our radiology, pathology and children's hematooncology department, one rhabdomyosarcoma, two malignant peripheral neuroectodermal tumors (PNET), one myelosarcoma and one malignant lymphoma in the paranasal sinuses. Two patients died.
  
  
  CONCLUSIONS
  These five cases of paranasal sinus malignomas are discussed in relation to their history and clinical course. We suggest that interdisciplinary treatment involving otorhinolaryngology, pathology, children's hematooncology, radiology and radiation therapy is obligatory for the therapy and for the best possible outcome of such cases.
authors.affiliation: Hals-Nasen-Ohren-Klinik der Johannes-Gutenberg-Universität Mainz. robert.schuon@web.de
authors.forename: R
authors.initials: R
authors.lastname: Schuon
authors.forename: P
authors.initials: P
authors.lastname: Jecker
authors.forename: V
authors.initials: V
authors.lastname: Gerein
authors.forename: J
authors.initials: J
authors.lastname: Faber
authors.forename: W
authors.initials: W
authors.lastname: Coerdt
authors.forename: W J
authors.initials: WJ
authors.lastname: Mann
mesh_terms: D000293:Adolescent; D003131:Combined Modality Therapy / Q000379:methods; D005260:Female; D005858:Germany / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D008297:Male; D010255:Paranasal Sinus Neoplasms / Q000145:classification / Q000175:diagnosis / Q000453:epidemiology* / Q000628:therapy*; D010348:Patient Care Team; D018570:Risk Assessment / Q000379:methods*; D012307:Risk Factors; D016896:Treatment Outcome