title: Olfactory neuroblastoma. A report of 5 cases.
abstract: The present paper presents 5 cases of olfactory neuroblastoma (NO), showing the problems concerning the diagnosis and treatment. The olfactory neuroblastoma is a rare tumor that represents 1 to 5% of the malignant tumors of the nasal cavity. The wide range of the patient's age associated with variety clinical and histological findings, made the diagnosis often difficult.
  
  
  CONCLUSIONS
  neuroblastoma has a difficult diagnosis; the histologic diagnosis should always be complemented by the immunohistochemical investigation; surgical resection with adequate margins is the first treatment on resectable lesions.
authors.affiliation: ENT department, Hospital das clinicas de la FMUSP LIM-32, Sao Paulo, Brésil.
authors.forename: O
authors.initials: O
authors.lastname: Butugan
authors.forename: P
authors.initials: P
authors.lastname: Bogar
authors.forename: L U
authors.initials: LU
authors.lastname: Sennes
authors.forename: R
authors.initials: R
authors.lastname: Ognibene
authors.forename: L
authors.initials: L
authors.lastname: Ishida
authors.forename: J A
authors.initials: JA
authors.lastname: da Silveira
authors.forename: S
authors.initials: S
authors.lastname: Rosemberg
authors.forename: A
authors.initials: A
authors.lastname: Miniti
mesh_terms: D000328:Adult; D002648:Child; D018304:Esthesioneuroblastoma, Olfactory / Q000175:diagnosis* / Q000628:therapy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009296:Nasal Cavity; D015508:Nasal Obstruction / Q000209:etiology; D009367:Neoplasm Staging; D009669:Nose Neoplasms / Q000175:diagnosis* / Q000628:therapy; D014057:Tomography, X-Ray Computed