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DeCS
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Descriptor English:
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Trochlear Nerve Diseases
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Descriptor Spanish:
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Enfermedades del Nervio Troclear
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Descriptor Portuguese:
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Doenças do Nervo Troclear
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Synonyms English:
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Cranial Nerve IV Diseases
Fourth Cranial Nerve Diseases
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Tree Number:
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C10.292.850
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Definition English:
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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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Indexing Annotation English:
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neopl: coord IM with CRANIAL NERVE NEOPLASMS (IM) + histol type of neopl (IM)
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History Note English:
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2000
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Allowable Qualifiers English:
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Record Number:
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34307
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Unique Identifier:
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D020432
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Occurrence in VHL:
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Similar:
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DeCS CID-10 SciELO LILACS LIS
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