"The interthalamic adhesion or massa intermedia is a small, variably present, non-neural connection between the medial apposing surfaces of the two thalami that passes through the third ventricle 7. It is not a commissure as once thought, as it does not contain neurones; instead, it is composed of glial tissue. Its functional significance is unknown 5. If a cast is made of the ventricular system when the adhesion is present, it will create a hole (fenestration or window) in the centre of the third ventricle."
"Chiari 2 malformation"
Expected headings
"Related pathology"
"The interthalamic adhesion or massa intermedia is a small, variably present, non-neural connection between the medial apposing surfaces of the two thalami that passes through the third ventricle 7. It is not a commissure as once thought, as it does not contain neurones; instead, it is composed of glial tissue. Its functional significance is unknown 5. If a cast is made of the ventricular system when the adhesion is present, it will create a hole (fenestration or window) in the centre of the third ventricle."