Related Experiment Videos
Upper cranial nerve palsy resulting from spontaneous carotid dissection
1Dept. of Neurology, Justus-Liebig-Universität Giessen, Am Steg 14, 35385 Giessen, Germany. tiemo.wessels@neuro.med.uni-giessen.de
Journal of Neurology
|March 2, 2005
Summary
Internal carotid artery (ICA) dissection is a key cause of cranial nerve palsy. Prompt diagnosis via imaging like MRI and ultrasound is crucial for effective management of this condition.
Area of Science:
- Neurology
- Vascular Surgery
- Radiology
Background:
- Upper cranial nerve palsy stems from diverse causes including ischemia, meningitis, and aneurysms.
- Internal carotid artery (ICA) dissection presents a less common but critical etiology for these palsies.
Observation:
- Two cases illustrate ICA dissection presenting with cranial nerve palsies and neurological deficits.
- Case 1: A 45-year-old man with headache and neck pain developed right-sided Horner's syndrome and facial hypesthesia, linked to right extracranial ICA dissection.
- Case 2: A 55-year-old man with neck pain developed left hemiparesis, followed by right oculomotor nerve palsy, due to right distal ICA occlusion from dissection.
Findings:
- Magnetic resonance angiography and conventional angiography confirmed ICA dissection in both cases.
- Duplex sonography identified ICA occlusion in one case, aiding diagnosis.
Implications:
- ICA dissection should be considered in the differential diagnosis of upper cranial nerve palsy.
- Duplex ultrasound and MRI are essential for diagnosing ICA dissection.
- Nerve ischemia from interrupted blood supply to the vasa nervorum is a likely mechanism for palsy in ICA dissection.