Preferred Label : trochlear nerve diseases;
MeSH definition : 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.;
MeSH synonym : trochlear neuropathy; cranial nerve iv diseases; fourth cranial nerve diseases; neuropathies, trochlear; neuropathy, trochlear; trochlear nerve disease; trochlear nerve disorder; trochlear nerve disorders; trochlear neuropathies;
MeSH hyponym : fourth cranial nerve palsy; superior oblique myokymia; superior oblique palsy, neurogenic; Myokymia, Superior Oblique; Myokymias, Superior Oblique; Superior Oblique Myokymias; Neurogenic Superior Oblique Palsy; Trochlear Nerve Palsy; Palsies, Trochlear Nerve; Palsy, Trochlear Nerve; Trochlear Nerve Palsies; Fourth Nerve Palsy; Fourth Nerve Palsies; Palsies, Fourth Nerve; Palsy, Fourth Nerve;
MeSH annotation : neopl: coord IM with CRANIAL NERVE NEOPLASMS (IM) histol type of neopl (IM);
Wikipedia link : https://en.wikipedia.org/wiki/Trochlear nerve palsy;
Origin ID : D020432;
UMLS CUI : C4048184;
Allowable qualifiers
Automatic exact mappings (from CISMeF team)
Currated CISMeF NLP mapping
DO Cross reference
HPO term
Record concept(s)
Related MeSH Supplementary Concept(s)
See also (suggested by CISMeF)
Semantic type(s)
UMLS correspondences (same concept)
Validated automatic mappings to BTNT
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.