Subependymal cysts

What it means

Cerebral cysts, usually located in the wall of the caudate nucleus or in the caudothalamic groove. They are found in up to 5.2% of all neonates, using transfontanellar ultrasound in the first days of life.

In the vast majority of cases, a simple persistence of the germinal matrix is proposed to explain their presence in asymptomatic preterm neonates. Viral infections, mainly with CMV and rubella, are commonly found when the pseudocysts are associated with other abnormalities of the central nervous system. The pseudocysts are then often multilocular.

Rare diseases that can present with this2

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Subependymal germinolytic cyst · Subependymal pseudocyst