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RGD DISEASE ONTOLOGY - ANNOTATIONS

RGD uses the Human Disease Ontology (DO, https://disease-ontology.org/) for disease curation across species. RGD automatically downloads each new release of the ontology on a monthly basis. Some additional terms which are required for RGD's curation purposes but are not currently covered in the official version of DO have been added. As corresponding terms are added to DO, these custom terms are retired and the DO terms substituted in existing annotations and subsequently used for curation.
Term:trochlear nerve disease
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Accession:DOID:13864 term browser browse the term
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.
Synonyms:exact_synonym: Fourth Cranial Nerve Diseases;   Neurogenic Superior Oblique Palsy;   Superior Oblique Myokymia;   Superior Oblique Myokymias;   Trochlear Nerve Disorder;   Trochlear Nerve Disorders;   Trochlear Neuropathies;   cranial nerve IV diseases;   disorder of trochlear nerve;   superior oblique muscle innervation disorder;   trochlear nerve diseases;   trochlear neuropathy
 primary_id: MESH:D020432
 xref: EFO:1001220;   ICD10CM:H49.1;   ICD9CM:378.53;   NCI:C180994;   NCI:C78395
For additional species annotation, visit the Alliance of Genome Resources.


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  disease 18976
    disease of anatomical entity 18260
      nervous system disease 14116
        peripheral nervous system disease 4123
          neuropathy 3906
            cranial nerve disease 693
              trochlear nerve disease 0
                fourth cranial nerve palsy 0
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