Olfactory neuroblastoma. A report of 5 cases.
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.
Butugan
O
O
ENT department, Hospital das clinicas de la FMUSP LIM-32, Sao Paulo, Brésil.
Bogar
P
P
Sennes
L U
LU
Ognibene
R
R
Ishida
L
L
da Silveira
J A
JA
Rosemberg
S
S
Miniti
A
A
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