International Journal of Neurorehabilitation

Kimihiko Orito

Publications

• Commentary
  Comment on Bilateral Anomalous Posterior Inferior Cerebellar Artery-Anterior Inferior Cerebellar Artery Anastomotic Arteries Associate with a Ruptured Cerebral Aneurysm
  Author(s): Naoko Fujimura and Kimihiko OritoNaoko Fujimura and Kimihiko Orito
  
  We previously reported an unusual case of bilateral posterior inferior cerebellar artery (PICA)-anterior inferior cerebellar artery (AICA) anastomosis associate with a ruptured aneurysm. Moreover, also this case had segmental absence of both distal vertebral arteries (VA). During the 7 to 12 mm embryonic stage, the basilar artery is formed by fusion of the longitudinal neural arteries. The VAs is formed by fusion of multiple segmental arteries, from C1 to C6. Inferior cerebellar arteries develop later than VAs. There is no literature concerning bilateral regression of the VAs. There is in contradiction of developmental stage between segmental regression of the VA and formation of VA- PICA-AICA-basilar artery anastomosis. Phylogenetically, PICA and AICA belong to pial arteries of the spinal cord. It is appropriate to consider segmental regression/occlusion of VAs to be acquired, and fo.. Read More»
  DOI: 10.4172/2376-0281.1000288

  Abstract PDF