Published March 25, 2021 as 10.3174/ajnr.A6972 LETTERS The So-Called Cranial Dural Channels and Their Relationship with the Bridging Veins ith great interest, we read the paper “Dural Venous drain directly into the cortical vein,” it is unclear if the authors WChannels: Hidden in Plain Sight—Reassessment of an mean that these dural channels may represent the actual location Under-Recognized Entity” by M. Shapiro et al. The authors of the shunt. In our experience, the shunt is not located in that should be commended for drawing the attention of readers to channel. Until now, we have not seen a fistula located in such a what is a common experience among neurointerventionalists per- channel, in a tentorial one (tentorial sinus), or in a falcine or a con- forming cerebral angiographies on a daily basis: the extreme varia- vexial one, despite years of observation trying to distinguish fea- tion of the cerebral venous—including the dural—system. In the tures implying such a location. On the contrary, detailed analyses literature and in everyday practice, we used to call these channels of the angiographic images, sometimes also correlated with surgical “convexial sinuses,”“accessory sinuses,”“tributary sinuses,” or views, convince us that the exact location of the shunt is
American Journal of Neuroradiology – American Journal of Neuroradiology
Published: Mar 25, 2021
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