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Ontology Browser

Term:
trochlear nerve disease (DOID:13864)
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Parent Terms Term With Siblings Child Terms
accessory nerve disease +  
Cranial Nerve Injuries +   
cranial nerve neoplasm +   
cranial nerve palsy +  
Cranial Nerves, Congenital Paresis of 
Cranial Nerves, Recurrent Paresis of 
facial nerve disease +   
glossopharyngeal nerve disease +   
hypoglossal nerve disease +   
jaw-winking syndrome 
ocular motility disease +   
olfactory nerve disease +   
Ophthalmoplegic Migraine 
optic nerve disease +   
third cranial nerve disease +   
trigeminal nerve disease +   
trochlear nerve disease +  
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.
Vagus nerve disease +   
vestibulocochlear nerve disease +   

Synonyms
Exact Synonyms: Cranial Nerve IV Diseases ;   Fourth Cranial Nerve Diseases ;   Neurogenic Superior Oblique Palsy ;   Superior Oblique Myokymia ;   Superior Oblique Myokymias ;   Superior oblique muscle innervation disorder ;   Trochlear Nerve Disorder ;   Trochlear Nerve Disorders ;   Trochlear Neuropathies ;   Trochlear Neuropathy ;   disorder of trochlear nerve ;   trochlear nerve diseases
Primary IDs: MESH:D020432
Alternate IDs: RDO:0007411
Xrefs: ICD10CM:H49.1 ;   ICD9CM:378.53 ;   NCI:C78395
Definition Sources: MESH:D020432

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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.