Abducens Nerve Palsy Caused by Basilar Impression Associated with Atlanto-occipital Assimilation

—Case Report—

Yuichi Hirose, Masachika Sagoh, Keita Mayanagi, Hideki Murakami

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A 47-year-old male presented with abducens nerve palsy due to basilar impression associated with atlanto-occipital assimilation manifesting as slowly progressive bilateral trigeminal neuralgia and diplopia in the right lateral gaze. X-ray and computed tomography of the skull confirmed the diagnosis of basilar impression and atlanto-occipital assimilation, and magnetic resonance imaging disclosed tightness of the posterior cranial fossa. Surgical suboccipital decompression resulted in gradual resolution of the patient's complaints, and no additional symptoms were recognized. Impairment of the sixth cranial nerve is a rare symptom compared to those of the fifth or the eighth cranial nerve in a patient with a craniocervical malformation. However, the present case shows the possibility of cranial nerve dysfunction due to tightness of the posterior cranial fossa, and suggests that surgical treatment for basilar impression with atlanto-occipital assimilation should be considered in patients with uncommon and unusual symptoms.

Original languageEnglish
Pages (from-to)363-366
Number of pages4
JournalNeurologia medico-chirurgica
Volume38
Issue number6
DOIs
Publication statusPublished - 01-01-1998

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Platybasia
Abducens Nerve Diseases
Posterior Cranial Fossa
Vestibulocochlear Nerve
Abducens Nerve
Surgical Decompression
Trigeminal Neuralgia
Diplopia
X Ray Computed Tomography
Cranial Nerves
Skull
Magnetic Resonance Imaging
Therapeutics

All Science Journal Classification (ASJC) codes

  • Surgery
  • Clinical Neurology

Cite this

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title = "Abducens Nerve Palsy Caused by Basilar Impression Associated with Atlanto-occipital Assimilation: —Case Report—",
abstract = "A 47-year-old male presented with abducens nerve palsy due to basilar impression associated with atlanto-occipital assimilation manifesting as slowly progressive bilateral trigeminal neuralgia and diplopia in the right lateral gaze. X-ray and computed tomography of the skull confirmed the diagnosis of basilar impression and atlanto-occipital assimilation, and magnetic resonance imaging disclosed tightness of the posterior cranial fossa. Surgical suboccipital decompression resulted in gradual resolution of the patient's complaints, and no additional symptoms were recognized. Impairment of the sixth cranial nerve is a rare symptom compared to those of the fifth or the eighth cranial nerve in a patient with a craniocervical malformation. However, the present case shows the possibility of cranial nerve dysfunction due to tightness of the posterior cranial fossa, and suggests that surgical treatment for basilar impression with atlanto-occipital assimilation should be considered in patients with uncommon and unusual symptoms.",
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Abducens Nerve Palsy Caused by Basilar Impression Associated with Atlanto-occipital Assimilation : —Case Report—. / Hirose, Yuichi; Sagoh, Masachika; Mayanagi, Keita; Murakami, Hideki.

In: Neurologia medico-chirurgica, Vol. 38, No. 6, 01.01.1998, p. 363-366.

Research output: Contribution to journalArticle

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