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词条 Weber's syndrome
释义

  1. Cause and presentation

  2. Diagnosis

  3. Management

  4. History

  5. See also

  6. References

  7. External links

{{Infobox_medical condition (new)
| name = Weber's syndrome
| synonyms = Superior alternating hemiplegia
| image = Weber's syndrome.svg
| caption = Midbrain cross section showing lesion
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| specialty = Neurology
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}}Weber's syndrome, also known as superior alternating hemiplegia, is a form of stroke characterized by the presence of an ipsilateral oculomotor nerve palsy and contralateral hemiparesis or hemiplegia. It is caused by midbrain infarction as a result of occlusion of the paramedian branches of the posterior cerebral artery or of basilar bifurcation perforating arteries.[1]

Cause and presentation

This lesion is usually unilateral and affects several structures in the midbrain including:

Structure damaged Effect
substantia nigra contralateral parkinsonism because its dopaminergic projections to the basal ganglia innervate the ipsilateral hemisphere motor field, leading to a movement disorder of the contralateral body.
corticospinal fibers contralateral hemiparesis and typical upper motor neuron findings. It is contralateral because it occurs before the decussation in the medulla.
corticobulbar tract difficulty with contralateral lower facial muscles and hypoglossal nerve functions
oculomotor nerve fibers ipsilateral oculomotor nerve palsy with a drooping eyelid and fixed wide pupil pointed down and out. This leads to diplopia

It is caused by midbrain infarction as a result of occlusion of the paramedian branches of the posterior cerebral artery or of basilar bifurcation perforating arteries.[2]

Diagnosis

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Management

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History

It carries the name of Sir Hermann David Weber, a German-born physician working in London, who described the condition in 1863.[3][4] It is unrelated to Sturge-Weber syndrome, Klippel-Trenaunay-Weber syndrome or Osler-Weber-Rendu syndrome. These conditions are named for his son Frederick Parkes Weber.

See also

  • Alternating hemiplegia of childhood
  • Lateral medullary syndrome
  • Lateral pontine syndrome
  • Medial medullary syndrome
  • Medial pontine syndrome

References

1. ^{{Cite GPnotebook|-932511721|Weber's syndrome}}
2. ^{{Cite GPnotebook|-932511721|Weber's syndrome}}
3. ^{{cite journal | author=Weber HD | title=A contribution to the pathology of the crura cerebri | journal=Medico-Chirurgical Transactions | year=1863 | volume=46 | pages=121–139}}
4. ^{{Whonamedit|synd|407|Weber's syndrome}}

External links

{{Medical resources
| DiseasesDB = 31247
| ICD10 = {{ICD10|G|46|3|g|40}}
| ICD9 = {{ICD9|344.89}}
| ICDO =
| OMIM =
| MedlinePlus =
| eMedicineSubj =
| eMedicineTopic =
| MeshID = D020526
}}{{Cerebrovascular diseases}}{{Lesions of spinal cord and brainstem}}{{CNS diseases of the nervous system}}

2 : Stroke|Syndromes affecting the nervous system

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