Posterior Communicating Artery (PCOM) Aneurysm: Difference between revisions
(Created page with "==Background== *Acute CN III palsy w/ ipsilateral pupil dilation is PCOM aneurysm until proven otherwise **Aneurysm compresses the outer fibers (pupillomotor) of CN III -> dilati...") |
No edit summary |
||
| Line 8: | Line 8: | ||
**Lateral gaze (abduction) is preserved | **Lateral gaze (abduction) is preserved | ||
*Ipsilateral dilated pupil | *Ipsilateral dilated pupil | ||
==Differential Diagnosis== | |||
==Diagnosis== | |||
==Treatment== | ==Treatment== | ||
| Line 14: | Line 18: | ||
*Neurosurgical consult | *Neurosurgical consult | ||
== | ==Disposition== | ||
==References== | |||
[[Category:Neuro]] | [[Category:Neuro]] | ||
Revision as of 07:33, 6 June 2015
Background
- Acute CN III palsy w/ 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 DM or HTN 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
Diagnosis
Treatment
- Emergent BP reduction if hypertensive
- Neuroimaging
- Neurosurgical consult