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A retro-odontoid pseudotumor treated with fixation and tumor resection by the lateral approach: illustrative case
BACKGROUND: A retro-odontoid pseudotumor is not a condition that requires resection. However, pathological diagnosis is required when a tumor such as a meningeal tumor or chordoma is suspected. The authors report a case of a large lesion treated with posterior fixation and tumor resection using a la...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association of Neurological Surgeons
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9245769/ https://www.ncbi.nlm.nih.gov/pubmed/35854836 http://dx.doi.org/10.3171/CASE20160 |
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author | Oda, Yoshiaki Tokioka, Takamitsu Ozaki, Toshifumi |
author_facet | Oda, Yoshiaki Tokioka, Takamitsu Ozaki, Toshifumi |
author_sort | Oda, Yoshiaki |
collection | PubMed |
description | BACKGROUND: A retro-odontoid pseudotumor is not a condition that requires resection. However, pathological diagnosis is required when a tumor such as a meningeal tumor or chordoma is suspected. The authors report a case of a large lesion treated with posterior fixation and tumor resection using a lateral approach. OBSERVATIONS: A 77-year-old man visited the authors’ department complaining of neck pain and decreased dexterity of the upper extremities. Magnetic resonance imaging showed a large, beak-shaped lesion behind the dens and severe compression of the spinal cord. Surgery consisted of occipitocervical–C2 fixation, followed by tumor resection with a left lateral approach. The pathological diagnosis was consistent with a retro-odontoid pseudotumor. The tumor was resected to a relatively large extent and shrank over time, leading to complete disappearance. LESSONS: Pathological examination is also possible with a posterior approach if the tumor can be reached through the lateral edge of the dura. In that situation, the amount of resection is limited, and there is a risk of spinal cord compression. Intradural dissemination of tumors is a concern with the transdural approach. If tumor resection by the posterior approach is difficult, the lateral approach can facilitate tumor resection. |
format | Online Article Text |
id | pubmed-9245769 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Association of Neurological Surgeons |
record_format | MEDLINE/PubMed |
spelling | pubmed-92457692022-07-18 A retro-odontoid pseudotumor treated with fixation and tumor resection by the lateral approach: illustrative case Oda, Yoshiaki Tokioka, Takamitsu Ozaki, Toshifumi J Neurosurg Case Lessons Case Report BACKGROUND: A retro-odontoid pseudotumor is not a condition that requires resection. However, pathological diagnosis is required when a tumor such as a meningeal tumor or chordoma is suspected. The authors report a case of a large lesion treated with posterior fixation and tumor resection using a lateral approach. OBSERVATIONS: A 77-year-old man visited the authors’ department complaining of neck pain and decreased dexterity of the upper extremities. Magnetic resonance imaging showed a large, beak-shaped lesion behind the dens and severe compression of the spinal cord. Surgery consisted of occipitocervical–C2 fixation, followed by tumor resection with a left lateral approach. The pathological diagnosis was consistent with a retro-odontoid pseudotumor. The tumor was resected to a relatively large extent and shrank over time, leading to complete disappearance. LESSONS: Pathological examination is also possible with a posterior approach if the tumor can be reached through the lateral edge of the dura. In that situation, the amount of resection is limited, and there is a risk of spinal cord compression. Intradural dissemination of tumors is a concern with the transdural approach. If tumor resection by the posterior approach is difficult, the lateral approach can facilitate tumor resection. American Association of Neurological Surgeons 2021-05-10 /pmc/articles/PMC9245769/ /pubmed/35854836 http://dx.doi.org/10.3171/CASE20160 Text en © 2021 The authors https://creativecommons.org/licenses/by-nc-nd/4.0/CC BY-NC-ND 4.0 (http://creativecommons.org/licenses/by-nc-nd/4.0/ (https://creativecommons.org/licenses/by-nc-nd/4.0/) ). |
spellingShingle | Case Report Oda, Yoshiaki Tokioka, Takamitsu Ozaki, Toshifumi A retro-odontoid pseudotumor treated with fixation and tumor resection by the lateral approach: illustrative case |
title | A retro-odontoid pseudotumor treated with fixation and tumor resection by the lateral approach: illustrative case |
title_full | A retro-odontoid pseudotumor treated with fixation and tumor resection by the lateral approach: illustrative case |
title_fullStr | A retro-odontoid pseudotumor treated with fixation and tumor resection by the lateral approach: illustrative case |
title_full_unstemmed | A retro-odontoid pseudotumor treated with fixation and tumor resection by the lateral approach: illustrative case |
title_short | A retro-odontoid pseudotumor treated with fixation and tumor resection by the lateral approach: illustrative case |
title_sort | retro-odontoid pseudotumor treated with fixation and tumor resection by the lateral approach: illustrative case |
topic | Case Report |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9245769/ https://www.ncbi.nlm.nih.gov/pubmed/35854836 http://dx.doi.org/10.3171/CASE20160 |
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