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Trochlear Nerve Diseases MeSH Descriptor Data 2022


MeSH Heading
Trochlear Nerve Diseases
Tree Number(s)
C10.292.850
Unique ID
D020432
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D020432
Annotation
neopl: coord IM with CRANIAL NERVE NEOPLASMS (IM) + histol type of neopl (IM)
Scope Note
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.
Entry Version
TROCHLEAR NERVE DIS
Entry Term(s)
Cranial Nerve IV Diseases
Fourth Cranial Nerve Diseases
Fourth Cranial Nerve Palsy
Fourth Nerve Palsy
Neurogenic Superior Oblique Palsy
Superior Oblique Myokymia
Superior Oblique Palsy, Neurogenic
Trochlear Nerve Disorders
Trochlear Nerve Palsy
Trochlear Neuropathy
Previous Indexing
Cranial Nerve Diseases (1981-1999)
Trochlear Nerve (1965-1999)
Public MeSH Note
2000
History Note
2000
Date Established
2000/01/01
Date of Entry
1999/11/03
Revision Date
2001/07/25
Trochlear Nerve Diseases Preferred
Superior Oblique Myokymia Narrower
Superior Oblique Palsy, Neurogenic Narrower
Fourth Cranial Nerve Palsy Narrower
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