Median prosencephalic vein

Dr Henry Knipe and A.Prof Frank Gaillard et al.

The median prosencephalic vein of Markowski is a precursor to the vein of Galen; typically before birth, its anterior portion regresses with formation of the internal cerebral veins and its posterior portion persists as the vein of Galen. If an arterio-venous fistula exists, it balloons out to become the 'aneurysmal' vein of Galen malformation. This occurs because the vein is thin walled, lies free within the subarachnoid space, and is unable to accommodate the arterial flow.

Anatomy: Brain
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Article information

rID: 5119
Section: Anatomy
Synonyms or Alternate Spellings:
  • Prosencephalic vein of Markowski
  • Median prosencephalic vein (MPV)

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Cases and figures

  • Vein of Galen mal...
    Figure 1: vein of Galen malformation
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  • Case 1: vein of Galen malformation
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