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Central nervous system
Central nervous system
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Cranial mononeuropathy III - compression type

Alternative Names:

Third cranial nerve palsy; Oculomotor palsy



Symptoms:

Note: Other symptoms may occur if the disorder is caused by tumors or trauma. Decreasing consciousness is a particularly ominous sign and implies impending severe brain damage or death.



Signs and tests:

Examination of the eyes may indicate cranial mononeuropathy III. The pupil of the affected eye may be dilated (enlarged). Eye movement abnormalities will vary depending on whether the nerve is damaged completely or incompletely. The gaze may be dysconjugate (the eyes do not align). Investigation must include a complete medical and neurological examination to ascertain whether any other systems of the body are affected.

Blood tests and imaging studies such as a CT scan or MRI are usually necessary. An angiogram of the brain or spinal tap may be important if an aneurysm is suspected.



Review Date: 7/25/2002
Reviewed By: Joseph V. Campellone, M.D., Division of Neurology, Cooper Hospital/University Medical Center, Camden, NJ. Review provided by VeriMed Healthcare Network.

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