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Query: UMLS:C0029089 (
ophthalmoplegia
)
3,338
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
The nuclear syndrome of the third nerve was first described in 1981. It has the very characteristic disturbance of an
ophthalmoplegia
with complete ipsilateral third nerve palsy associated with paresis of elevation in contralateral eye. This particularly presentation is due to the innervation of the superior rectus which comes mainly from the contralateral oculomotor nucleus. As associated signs were described contralateral cerebellar and or pyramidal syndromes, uni or bilateral parasympathetic disfunction and sometimes gaze disorders. The etiology es usually a vascular damage (ischemic most frequently) located in mesencephalon. We report on a case of a 60 years old man who developed acute nuclear
ophthalmoplegia
of the third right nerve accompanied with cerebellar and pyramidal syndrome and focal asterixis in left extremities. MRI showed an ischemic lesion in right paramedial mesencephalic territory with extension to the ipsilateral thalamic region. Pyramidal and cerebellar syndromes and asterixis disappeared in a few weeks, while
ophthalmoplegia
remained unchanged. Semiologic characteristics and anatomic basis of the nuclear
oculomotor syndrome
which allow to make the differential diagnosis between this syndrome and intra-axial fascicular disturbances of the third nerve (Weber, Claude and Benedikt syndromes) are discuss.
...
PMID:[Nuclear syndrome of the oculomotor nerve caused by a mesencephalic infarction confirmed by MRI]. 141 24
Two cases of myasthenic pseudointernuclear
ophthalmoplegia
are reported. The diagnosis of this rare peripheral
oculomotor syndrome
is established on the variability of the clinical signs, their improvement by pharmacological testing, the combined impairment of convergence, the usual association of ptosis, and in some cases the presence of specific electromyographic signs. The nystagmus of the abducting eye could result from a selective damage to the tonic muscle fibres mediating fixation, the phasic fibres (performing saccades) being spared.
...
PMID:[Myasthenic internuclear pseudo-ophthalmoplegia]. 664 6