The Venous Circle of Trolard: An Anatomical Study with Application to Approaches to the Basal Brain

Mapping the circle of Trolard: A holistic view of its role in neurosurgical practice, anatomical perspectives and clinical applications

“…The anterior and posterior communicating veins, which cross the midline to connect the anterior and posterior segments of the BVR, are responsible for creating the circle of Trolard ( Eskew et al, 2023 ) ( Fig. 2 ).…”

“…Alternately, the anterior communicating vein can appear as a collection of several veins of a smaller size. Afferent branches that connect to the anterior venous circle include the anterior cerebral veins, chiasmatic veins, olfactory veins, septal veins, callosal veins, and chiasmatic veins in the midline, and the inferior striate veins, insular veins, and uncal veins on the sides ( Eskew et al, 2023 ). The significance of this vein in arteriovenous malformation (AVM) procedures is paramount, as it plays a substantial role in regulating blood flow and avoiding consequences such as vision impairment, olfactory impairment, and behavioural disorders.…”