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Medical Term:

collateral trigone


a triangular prominence of the floor of the lateral ventricle at the transition between occipital and temporal horn, continuous rostrally with the collateral eminence and, like it, caused by the deep penetration of the collateral sulcus from the ventral surface of the temporal lobe.

Synonym(s): trigonum collateraleTA, trigone of lateral ventricle, trigonum ventriculi, ventricular trigone

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