Diferencia entre revisiones de «Posterior Communicating Artery (PCOM) Aneurysm»
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[[Category:Neurology]] | [[Category:Neurology]] | ||
[[Category:Vascular]] | [[Category:Vascular]] | ||
Revisión del 01:13 24 jul 2017
Background
- Acute CN III palsy with ipsilateral pupil dilation is PCOM aneurysm until proven otherwise
- Aneurysm compresses the outer fibers (pupillomotor) of CN III → dilation
- In contrast to CN III palsy due to diabetes mellitus or hypertension in which pupil is spared
Clinical Features
- Inhibition of ipsilateral medial gaze, upward gaze, downward gaze, ptosis
- Lateral gaze (abduction) is preserved
- Ipsilateral dilated pupil
Differential Diagnosis
Evaluation
Management
- Emergent BP reduction if hypertensive
- Neuroimaging
- Neurosurgical consult