Within the dural confines of the trigeminal cave, there is a continuation of subarachnoid space along the posterior aspect of the cave, representing a continuation of the cerebral basal cisterns.[1]
^Burr HS, Robinson GB: An anatomical study of the gasserian ganglion with particular reference to the nature and extend of Meckel’s Cave (M,C). Anatomical Record 29:269-282, 1925.