Skip to Content
Medical Term:

endolymphatic sac


Definition: the dilated blind extremity of the endolymphatic duct, which lies external to the dura on the posterior aspect of the petrous part of the temporal bone.

Synonym(s): saccus endolymphaticusTA, Böttcher space, Cotunnius space, sacculus endolymphaticus

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.