Superior choroidal vein
The anterior caudate vein and the superior choroidal veins cross the lateral wall of the ventricle and join the thalamostriate vein at its anterior edge 1).
1)
Rhoton ALJ (2003) The lateral and third ventricle. In: Apuzzo MLJ (ed) Rhoton's cranial anatomy and surgical approaches. Lippincott Williams and Wilkins, pp 238–251