Posterior Cerebral Artery Branches

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4 anatomic segments of the PCA:

  1. P1 segment: from tip of basilar to origin of PComm
  2. P2 segment: from Pcomm to dorsal midbrain
    1. P2A – anterior segment
    2. P2P – posterior segment
  3. P3 segment: from lateral quad cistern at origin of post temporal artery to ant limit of calcarine fissure
  4. P4 segment:  terminal cortical branches of PCA after takeoff of parieto-occipital and calcarine arteries

 

REFERENCE:

AJNR Am J Neuroradiol. 2001 Jan;22(1):27-34. “Aneurysms of the posterior cerebral artery: classification and endovascular treatment.”   Ciceri EF1, Klucznik RP, Grossman RG, Rose JE, Mawad ME.

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