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Vol. 69. Issue 4.
Pages 208-213 (July - August 2018)
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Vol. 69. Issue 4.
Pages 208-213 (July - August 2018)
Original article
Importance of neoadjuvant chemotherapy in olfactory neuroblastoma treatment: Series report and literature review
Importancia de la quimioterapia neoadyuvante en el tratamiento del neuroblastoma olfatorio: serie de casos y revisión de la literatura
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Ricardo Bartela,
Corresponding author
pilobartel@gmail.com

Corresponding author.
, Xavier Gonzalez-Comptaa, Enric Cisaa, Francesc Cruellasa, Alberto Torresb, Aleix Roviraa, Manel Manosa
a ORL-HNS Department, Hospital Universitari de Bellvitge, Barcelona, Spain
b Neurosurgery Department, Hospital Universitari de Bellvitge, Barcelona, Spain
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Figures (2)
Tables (4)
Table 1. Kadish staging system.
Table 2. Dulguerov staging system.
Table 3. Hyams grade.
Table 4. Patient results.
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Abstract
Introduction and objectives

Olfactory neuroblastoma (ONB) is a rare entity that constitutes less than 5% of nasosinusal malignancies. Mainstream treatment consists in surgical resection+/−adjuvant radiotherapy. By exposing results observed with apparition of new therapeutic options as neoadjuvant chemotherapy, the objective is to evaluate a series and a review of the current literature.

Methods

A retrospective review was conducted including patients diagnosed and followed-up for ONB from 2008 to 2015 in our institution.

Results

9 patients were included. Mean follow-up of 52.5 months (range 10–107). Kadish stage: A, 1 patient (11.1%) treated with endoscopic surgery; B, 2 patients (22.2%) treated with endoscopic surgery (one of them received adjuvant radiotherapy); C, 6 patients (66.7%), 4 patients presented intracranial extension and were treated with neoadjuvant chemotherapy followed by surgery and radiotherapy. The other 2 patients presented isolated orbital extension, treated with radical surgery (endoscopic or craniofacial resection) plus radiotherapy. The 5-year disease free and overall survival observed was 88.9%.

Conclusion

Neoadjuvant chemotherapy could be an effective treatment for tumor reduction, improving surgical resection and reducing its complications.

Keywords:
Esthesioneuroblastoma
Olfactory neuroblastoma
Neoadjuvant chemotherapy
Endoscopic surgery
Adjuvant radiotherapy
Resumen
Introducción y objetivos

Elneuroblastoma olfatorio es una entidad rara que se corresponde con menos del 5% de las neoplasias nasosinusales. El tratamiento principal consiste en la resección quirúrgica±radioterapia adyuvante. El objetivo es evaluar la sobrevida en una serie de casos y la literatura actual, mostrando resultados observados con la aparición de nuevas opciones terapéuticas como la quimioterapia neoadyuvante.

Métodos

Se realizó un estudio retrospectivo incluyendo pacientes tratados y seguidos en nuestro centro desde 2008 a 2015.

Resultados

Dentro del estudio fueron incluidos 9 pacientes. El seguimiento medio fue de 52,5 meses (rango 10-107). Estadio Kadish: A) un paciente (11,1%) fue tratado con resección endoscópica; B) 2 pacientes (22,2%) tratados con resección endoscópica (uno de ellos recibió radioterapia adyuvante); C) 6 pacientes (66,7%), de los cuales 4 presentaron extensión intracraneal y fueron tratados con quimioterapia neoadyuvante, cirugía y radioterapia adyuvante. Los otros 2 pacientes presentaron invasión intraorbitaria aislada, tratados con cirugía radical y radioterapia adyuvante. La sobrevida y periodo libre de enfermedad a 5 años fue del 88,9%.

Conclusión

La quimioterapia neoadyuvante puede ser un tratamiento efectivo para la reducción del tamaño tumoral, mejorando la resección quirúrgica y reduciendo sus complicaciones.

Palabras clave:
Estesioneuroblastoma
Neuroblastoma olfatorio
Quimioterapia neoadyuvante
Resección endoscópica
Radioterapia adyuvante

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