What is the function of the septum pellucidum in the brain?

What is the function of the septum pellucidum in the brain?

The septum pellucidum acts as a partition between a portion of the lateral ventricles, forming part of the walls of the anterior region of the lateral ventricles. It is made up of a thin two-layered structure that consists of white matter, some neurons, fiber bundles, and blood vessels.

Why is the septum pellucidum important?

The septum pellucidum is a thin, laminated translucent vertical membrane in the midline of the brain separating the anterior horns of the right and left ventricles. This is an important normal structure to identify in the sonographic assessment of the fetal brain.

Can you live without septum pellucidum?

By itself, absence of the septum pellucidum is not life-threatening. When the absence of the septum pellucidum is part of septo-optic dysplasia, the prognosis varies according to the presence and severity of associated symptoms. By itself, absence of the septum pellucidum is not life-threatening.

What does an absent CSP mean?

Absence of a fluid-filled CSP can result from primary prosencephalic maldevelopment or a secondary process with resultant destruction of the septal leaflets. It is associated with a range of disorders: agenesis/dysgenesis of the CC, schizencephaly, SOD, HPE, severe chronic hydrocephalus and acquired fetal brain injury.

What does Pellucidum mean?

Anatomical terms of neuroanatomy The septum pellucidum (Latin for “translucent wall”) is a thin, triangular, vertical double membrane separating the anterior horns of the left and right lateral ventricles of the brain. It runs as a sheet from the corpus callosum down to the fornix.

Can you be born without a septum?

The septum pellucidum (SP) is a thin membrane located at the midline of the brain. Children who are born without this membraine and also have other abnormalities–pituitary deficiencies and abnormal development of the optic disk–have a disorder known as septo-optic dysplasia.

Why do people not have septums?

For some people, a deviated septum is present at birth — occurring during fetal development or due to injury during childbirth. After birth, a deviated septum is most commonly caused by an injury that moves your nasal septum out of place. Risk factors include: Playing contact sports.

Is absent CSP genetic?

Absent CSP is a very important CNS malformation marker, and its presence should trigger extended fetal morpho-genetic evaluation. In our experience, almost half of the cases associated genetic disorders and 39% associated structural malformations.

What does CSP mean on an ultrasound?

Objective: The cavum septi pellucidi (CSP) is routinely imaged in the fetal brain during obstetric sonography; in fact, for well over a decade, assessment of the CSP has been considered part of the required elements of a standard examination of fetal morphology in guidelines developed by multiple specialty societies.

What is a septum in a cyst?

Abstract. A septum pellucidum cyst is defined as a cystic structure between the lateral ventricles, whose walls exhibit lateral bowing and are 10 mm apart or greater.

What are the symptoms of absence of the septum pellucidum?

The symptoms of absence of the septum pellucidum may vary, and it may be difficult to determine which symptoms are due to the underlying disorder and which ones are due to absence of the septum pellucidum. Symptoms that are common among people with absence of the septum pellucidum include learning disabilities,…

Why do people with absence of the septum feel hungry?

Therefore, an absence of the septum pellucidum may cause an individual to feel hungry even when they are not or tired when they have had enough sleep. Some people with absence of the septum pellucidum do not grow very tall or have a high body mass index (BMI).

Is the septum pellucidum alone predictive of visual acuity?

Absence of the septum pellucidum alone is not predictive of visual acuity, specific cognitive abnormalities or spatial orientation deficits. Thinning or agenesis of the corpus callosum alone is not predictive of neurodevelopmental defects; however, it is frequently associated with cerebral hemispheric abnormalities.

What happens when a child is born without a septum?

Children who are born without this membrane and also have other abnormalities–pituitary deficiencies and abnormal development of the optic disk–have a disorder known as septo-optic dysplasia. More information about this condition can be located at the NINDS Septo-Optic Dysplasia Information Page.