抄録
The vein of the cochlear aqueduct (VCAQ) is the main draining vein of the cochlea. Collecting venules from the stria vascularis and from the spiral lamina drain into the spiral modiolar vein (SMV) in the basal turn. But in the basal end, some of collecting venules drain into the vein of the round window (VRW) and into the vestibulo-cochlear vein (VCV). After the confluence of SMV, VRW and VCV, VCAQ empties into the jugular vein or into the dural sinus. In some cases, well developed vessels from mucoperiosteum of the middle ear made some connections with VCAQ. It would be suggested that these connections were available for the collateral circulation on acute obstruction of VCAQ.
