2020年2月3日 · It refers either to the three-dimensional space at the transition between the body of the lateral ventricle and the occipital and temporal horns, in which case it is also known as the atrium (plural: atria), or the triangular floor of this space, in which case it is also known as the collateral trigone 1,2.

The trigone of the lateral ventricle is the area where the part of the body forms a junction with the inferior horn and the posterior horn. This area is referred to as the atrium of the lateral ventricle, and is where the choroid plexus is enlarged as the choroid glomus .

2024年7月6日 · The posterior confluence of the occipital and temporal horns is called the trigone or atrium of the ventricles. The volume of the lateral ventricles is known to increase with age due to cerebral involution.

Isolated anatomic variations of the lateral ventricles are very common in healthy individuals. In this article, we describe several anatomic variants of the lateral ventricles and review multiple studies of these entities. We also review the anatomy and embryology of the lateral ventricles.

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.

2023年8月24日 · The body, posterior horn, and inferior horn of each lateral ventricle join in a triangular area called the atrium (or collateral trigone). The choroid plexus of the lateral ventricles is found in the superomedial portion of the inferior horn and the anteromedial portion of the body.

2023年8月8日 · The lateral ventricle, when viewed from the lateral aspects of the brain, has a roughly C–shaped profile which follows the arrangement and shape of each hemisphere. Thus, the lateral ventricles span the cerebrum , including the occipital , frontal and parietal lobes.

A. Lateral Ventricles. There are two lateral ventricles, one per cerebral hemisphere. The five subdivisions of the lateral ventricles include the anterior (frontal) horn, the body, the collateral trigone or atrium, the inferior (temporal) horn and the posterior (occipital) horn.

2024年9月30日 · On MRI, the trigone appears as a widened area of the lateral ventricle, typically visible on axial and coronal images. Its walls are formed by important white matter tracts, including the tapetum of the corpus callosum and the optic radiations.

Each lateral ventricle is a C-shaped cavity located deep within the cerebrum. As the lateral ventricle wraps around the thalamus or the central core of the brain, other structures within the ventricle also assume a C-shaped form: the choroidal fissure, the fornix, the caudate nucleus, and the choroid plexus.