<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Olfactory neuroblastoma (ONB), also known as esthesioneuroblastoma, is a rare malignant neuroectodermal tumor originating primarily from the basal layer of the olfactory epithelium in the roof of the nasal cavity. The most common symptoms are nasal obstruction, anosmia, recurrent epistaxis, rhinorrhea and excessive lacrimation. Imaging studies are helpful for assessing the extent of olfactory neuroblastoma, as well as grading the tumor. The definitive diagnosis is based on histopathological exam and immunohistochemistry profile and it might be quite challenging because the tumor can mimic other sinonasal malignancies. Because of the small number of reported cases and the lack of prospective research, the optimal treatment for olfactory neuroblastoma is still controversial. However, it is generally believed that surgical resection followed by radiotherapy gives the best outcome in terms of recurrence and survival rates. Keeping in mind the rarity of olfactory neuroblastoma and the diagnostic difficulty, the aim of this study is to improve the understanding of the clinical features by reviewing the literature focusing on the recent advances in the diagnosis and treatment of ONB. Moreover, we are reporting an atypical case of an aggressive type of olfactory neuroblastoma treated through a multimodal approach, with no signs of tumor recurrence after a 3-month follow-up.</p>
</abstract>

Olfactory neuroblastoma (ONB), also known as esthesioneuroblastoma, is a rare malignant neuroectodermal tumor originating primarily from the basal layer of the olfactory epithelium in the roof of the nasal cavity. The most common symptoms are nasal obstruction, anosmia, recurrent epistaxis, rhinorrhea and excessive lacrimation. Imaging studies are helpful for assessing the extent of olfactory neuroblastoma, as well as grading the tumor. The definitive diagnosis is based on histopathological exam and immunohistochemistry profile and it might be quite challenging because the tumor can mimic other sinonasal malignancies. Because of the small number of reported cases and the lack of prospective research, the optimal treatment for olfactory neuroblastoma is still controversial. However, it is generally believed that surgical resection followed by radiotherapy gives the best outcome in terms of recurrence and survival rates. Keeping in mind the rarity of olfactory neuroblastoma and the diagnostic difficulty, the aim of this study is to improve the understanding of the clinical features by reviewing the literature focusing on the recent advances in the diagnosis and treatment of ONB. Moreover, we are reporting an atypical case of an aggressive type of olfactory neuroblastoma treated through a multimodal approach, with no signs of tumor recurrence after a 3-month follow-up.

Olfactory neuroblastoma: Up-to-date review and our experience

“Carol Davila” University of Medicine and Pharmacy

Romanian Journal of Rhinology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Olfactory neuroblastoma: Up-to-date review and our experience"}

Olfactory neuroblastoma (ONB), also known as esthesioneuroblastoma, is a rare malignant neuroectodermal tumor originating primarily from the basal layer of the...

Olfactory neuroblastoma: Up-to-date review and our experience

Published Online: Jul 26, 2023

Page range: 94 - 102

Received: Feb 08, 2023

Accepted: Mar 27, 2023

DOI: https://doi.org/10.2478/rjr-2023-0016

Keywords
olfactory neuroblastoma, esthesioneuroblastoma, surgery, radiotherapy, chemotherapy

© 2023 Bianca Rusu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Olfactory neuroblastoma: Up-to-date review and our experience

Published Online: Jul 26, 2023

Page range: 94 - 102

Received: Feb 08, 2023

Accepted: Mar 27, 2023

DOI: https://doi.org/10.2478/rjr-2023-0016

Keywordsolfactory neuroblastoma, esthesioneuroblastoma, surgery, radiotherapy, chemotherapy

© 2023 Bianca Rusu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
olfactory neuroblastoma, esthesioneuroblastoma, surgery, radiotherapy, chemotherapy