Trigone of the lateral ventricle

Dr Craig Hacking and Dr Phillip Marsh et al.

The trigone of of lateral ventricle, also known as the atrium, is a triangular area at the floor of the lateral ventricle that forms the transition point between the occipital and temporal horns.

It is the classic location for intraventricular meningioma.

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Article information

rID: 62538
Section: Anatomy
Tag: atrium
Synonyms or Alternate Spellings:
  • Atrium of the lateral ventricles
  • Ventricular atrium
  • Ventricular trigone

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Cases and figures

  • Figure 1: brain ventricle anatomy diagram
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