Acute abducens nerve palsy from a complex retro-odontoid pseudotumor with a protrusion: A case report.

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Citation: Radiology Case Reports. 19(1):326-329, 2024 Jan.PMID: 38028298Department: MedStar Georgetown University Hospital/MedStar Washington Hospital Center | Radiology/Neuroradiology FellowshipForm of publication: Journal ArticleMedline article type(s): Case ReportsYear: 2024ISSN:
  • 1930-0433
Name of journal: Radiology case reportsAbstract: Retro-ondontoid pseudotumors represent soft tissue proliferation surrounding the transverse ligament of the atlas, which most commonly results in cervical neck pain or myelopathy due to impingement upon the cervicomedullary junction. The causes of retro-odontoid pseudotumor formation are varied and include metabolic, inflammatory, degenerative, and post-traumatic etiologies. To the best of our knowledge, an abducens nerve palsy as a result of a complex retro-odontoid pseudotumor has never been reported. We discuss a case of a 90-year-old woman who presents with acute lateral gaze palsy with multimodality imaging demonstrating a retro-odontoid pseudotumor with an unusual protrusion which courses superolaterally to the level of the pons and compresses the abducens nerve root entry zone. Copyright © 2023 The Authors. Published by Elsevier Inc. on behalf of University of Washington.All authors: Sardi J, Chavez-Yenter A, Wendell LC, Sasson JP, Wood MJFiscal year: FY2024Digital Object Identifier: Date added to catalog: 2024-01-16
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Journal Article MedStar Authors Catalog Article 38028298 Available 38028298

Retro-ondontoid pseudotumors represent soft tissue proliferation surrounding the transverse ligament of the atlas, which most commonly results in cervical neck pain or myelopathy due to impingement upon the cervicomedullary junction. The causes of retro-odontoid pseudotumor formation are varied and include metabolic, inflammatory, degenerative, and post-traumatic etiologies. To the best of our knowledge, an abducens nerve palsy as a result of a complex retro-odontoid pseudotumor has never been reported. We discuss a case of a 90-year-old woman who presents with acute lateral gaze palsy with multimodality imaging demonstrating a retro-odontoid pseudotumor with an unusual protrusion which courses superolaterally to the level of the pons and compresses the abducens nerve root entry zone. Copyright © 2023 The Authors. Published by Elsevier Inc. on behalf of University of Washington.

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