Oculomotor nerve palsy - Causes

The causes of oculomotor nerve paralysis:- Focal lesions that cause bleeding and ramolismentele are sudden onset of paralysis.- Diffuse hemorrhagic lesions clinical outline of the Wernicke type polioencefalitei ophthalmoplegic bilateral.- Pontine tumors - are quite rare, are found more often in children.The most common tumor is glioma, which may induce a bilateral paralysis of VI nerve.- Encefalomielitele acute viral etiology that: epidemic encephalitis, polio (severe form), secondary encefalomielitele eruptive fevers.- Encefalomielitele of infectious diseases as typhoid fever, erysipelas, diphtheria. In the case of typhoid fever, the most common complication is represented by VI nerve palsy.- Poisoning: lead poisoning (most commonly affects nerve VI), carbon dioxide and botulism have the effect of oculomotor nerve palsy in addition to the loss of accommodation, with mydriasis, these phenomena can be accompanied by bulbar nerve paralysis;- Diabetes can cause bilateral paralysis associated with Argyll-Robertson sign (pupil reflex abolition fotomotor the conservation accommodative reflex);- Familial and hereditary degenerative disease: progressive nuclear ophthalmoplegic - characterized by degeneration of oculomotor nuclei, nuclei destined pupil is spared. The patient shows a "hutchinsonian facies. If interested degenerative lesions and bulbar nuclei, then there labioglosolaringiana and paralysis.The etiology of this disease involving vascular lesions of the brainstem, multiple sclerosis, syphilis, and some poisoning.Multiple sclerosis can occur in 25-35% of cases with paralysis oculomotorilor. If heredotaxiei cerebellar (or Pierre-Marie disease) is common VI nerve palsy. Changes in pupillary reflexes are found in Friedreich disease. In siringomielobulbie VI nerve palsy is associated with nerve VII.- Acute Neuromyelitis optica or Devic's disease is manifested by oculomotor nerve palsy associated with optic nerve damage, having a microbial or viral etiology. Clinical translates into paraplegia associated with blindness. The disease usually regress slowly.- Schilder's disease - is a subacute or chronic form leucoencefalita common in children and adolescents. He is interested in the brainstem, accompanied by paralysis of the oculomotor nerve.