结构高低级

血管周遭 > 小脑前下动脉

翻译

描述

The AICA has a variable origin, course and supply, and is not present on 40% of people. The amount of tissue supplied by the AICA is variable (PICA-AICA dominance) but usually includes:

  • middle cerebellar peduncle
  • inferolateral portion of the pons
  • flocculus
  • anteroinferior surface of the cerebellum

 

Stroke pattern:

Pure AICA infarcts are rare, they mainly occur with other territories involved. They frequently have a concomitant pontine infarct. There is 4 major patterns:

  • Coma with tetraplegia (pontine infarct)
  • Classic AICA syndrome: ipsilateral involvement of the V, VII and VIII cranial nerves with hearing loss, vertigo, vomiting, tinnitus, facial palsy and facial sensory loss, Horner syndrome, appendicular ataxia, contralateral temperature and pain sensory loss
  • Pure vestibular syndrome (isolated vertigo)
  • Isolated cerebellar signs

The vascular territories in the cerebellum and brainstem: CT and MR study. by Savoiardo M, Bracchi M, Passerini A, Visciani A. AJNR Am J Neuroradiol. 1987 Mar-Apr;8(2):199-209. Oxford Textbook of Stroke and Cerebrovascular Disease - Bo Norrving - Oxford University Press, 2019

影像

下载e-Anatomy

手机和平板用户可以在Appstore或GooglePlay下载e-Anatomy

e-Anatomy 在Appstore e-Anatomy 在Googleplay