About The Medical Condition Palsies, Fourth Nerve

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Find the definition of the medical term Palsies, Fourth Nerve. Palsies, Fourth Nerve defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.

Palsies, Fourth Nerve

Palsies, Fourth Nerve Medical Condition Defined & Explained
Palsies, Fourth Nerve Medical Condition

What's The Definition Of The Medical Condition Palsies, Fourth Nerve?

Diseases of the fourth cranial (trochlear) nerve or its nucleus in the midbrain. The nerve crosses as it exits the midbrain dorsally and may be injured along its course through the intracranial space, cavernous sinus, superior orbital fissure, or orbit. Clinical manifestations include weakness of the superior oblique muscle which causes vertical DIPLOPIA that is maximal when the affected eye is adducted and directed inferiorly. Head tilt may be seen as a compensatory mechanism for diplopia and rotation of the visual axis. Common etiologies include CRANIOCEREBRAL TRAUMA and INFRATENTORIAL NEOPLASMS.

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