1.Isolated bilateral abducens nerve palsy due to carotid cavernous dural arteriovenous fistula.
Kyung Yul LEE ; Seung Min KIM ; Dong Ik KIM
Yonsei Medical Journal 1998;39(3):283-286
Carotid cavernous dural arteriovenous fistula (DAVF) usually presents with conjunctival injection, proptosis, loss of visual acuity and ophthalmoplegia. There have been some carotid cavernous DAVF case reports presenting with isolated oculomotor, abducens and trochlear nerve palsy. We experienced a patient presenting with bilateral abducens nerve palsy and no other ocular signs who was diagnosed as carotid cavernous DAVF after conventional angiography. According to this case, carotid cavernous DAVF should be considered in the differential diagnosis of isolated bilateral abducens nerve palsy, in which case conventional angiography may be helpful in diagnosis.
Abducens Nerve/physiopathology*
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Arteriovenous Fistula/complications*
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Carotid Artery Diseases/complications*
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Case Report
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Cavernous Sinus*/radiography
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Cranial Nerve Diseases/physiopathology
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Cranial Nerve Diseases/etiology
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Dura Mater/blood supply*
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Female
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Human
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Middle Age
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Paralysis/physiopathology
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Paralysis/etiology*
2.Presumed Metastasis of Breast Cancer to the Abducens Nucleus Presenting as Gaze Palsy.
Sang Beom HAN ; Jae Hyoung KIM ; Jeong Min HWANG
Korean Journal of Ophthalmology 2010;24(3):186-188
A 51-year-old woman with breast cancer presented with progressive diplopia. Neuro-ophthalmologic examination revealed right gaze palsy and peripheral facial nerve palsy. Brain magnetic resonance imaging (MRI) was normal. However, two months later a repeat brain MRI revealed an enhancing round nodular mass at the right facial colliculus of the lower pons, at the location of the abducens nucleus. Localized metastasis to the abducens nucleus can cause gaze palsy in a patient with breast cancer.
*Abducens Nerve Diseases
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Breast Neoplasms/*pathology
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Cranial Nerve Neoplasms/*complications/*secondary
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Facial Paralysis/complications
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Female
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Fixation, Ocular
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Humans
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Magnetic Resonance Imaging
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Middle Aged
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Ocular Motility Disorders/*etiology/physiopathology
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Pons/pathology