Choroid plexus cyst

What it means

A cyst occurring within the choroid plexus within a cerebral ventricle.

Choroid plexus cysts can be observed on prenatal ultrasound examinations and are associated with a weakly increased risk for fetal chromosome abnormalities such as trisomy 18.

Rare diseases that can present with this4

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