Olfactory (subfrontal) schwannoma: case report and literature review

Kasymov A.R.

Federal Center of Neurosurgery

Rzayev D.A.

Federal Center for Neurosurgery

SPIN RSCI: 8711-4097
Scopus AuthorID: 57215895381
ORCID: 0000-0002-1209-8960

Kalinovskiy A.V.

FSBI «Federal Center for Neurosurgery» of the Ministry of Health of the Russian Federation

Voronina E.I.

Federal Center of Neurosurgery

Olfactory (subfrontal) schwannoma: case report and literature review

Authors:

Kasymov A.R., Rzayev D.A., Kalinovskiy A.V., Voronina E.I.

More about the authors

Journal: Burdenko's Journal of Neurosurgery. 2022;86(3): 50‑55

DOI: 10.17116/neiro20228603150

Downloaded: 78

To cite this article:

Kasymov AR, Rzayev DA, Kalinovskiy AV, Voronina EI. Olfactory (subfrontal) schwannoma: case report and literature review. Burdenko's Journal of Neurosurgery. 2022;86(3):50‑55. (In Russ., In Engl.)
https://doi.org/10.17116/neiro20228603150

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BACKGROUND

Olfactory nerve schwannomas are extremely rare. Their origin is still unclear, since olfactory nerve has no Schwann cells. There are about 70 case reports of olfactory nerve schwannoma in the world literature. Original articles devoted to this issue are currently absent.

RESULTS

We present a 55-year-old patient with olfactory nerve schwannoma who underwent surgery at the Federal Center of Neurosurgery in Novosibirsk. MRI revealed extracerebral mass lesion of anterior cranial fossa base with left-sided lateralization resembling meningioma of the olfactory fossa. The patient underwent microsurgical resection of mass lesion of anterior cranial fossa base through left-sided lateral supraorbital craniotomy. The tumor macroscopically resembled schwannoma. Total resection was carried out. Considering morphological structure and immunomorphological characteristics, we verified schwannoma Grade 1.

CONCLUSION

Olfactory nerve schwannomas are rare tumors with benign histological structure. Relapses after total resection are unlikely. However, further research of this rare pathology and long-term postoperative follow-up are required.

Keywords:

schwannoma

olfactory nerve schwannoma

olfactory fossa

olfactory nerve

Authors:

Kasymov A.R.

Federal Center of Neurosurgery

Rzayev D.A.

Federal Center for Neurosurgery

SPIN RSCI: 8711-4097
Scopus AuthorID: 57215895381
ORCID: 0000-0002-1209-8960

Kalinovskiy A.V.

FSBI «Federal Center for Neurosurgery» of the Ministry of Health of the Russian Federation

Voronina E.I.

Federal Center of Neurosurgery

Received:

22.06.2021

Accepted:

25.03.2022

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