Choroid Plexus Carcinoma

Choroid plexus tumors (Grade III) occur in both children and adults, but are more common in children in the first year of life. Choroid plexus tumors occur slightly more often in females than males.

The cause of most choroid plexus tumors is not known. Genetic changes have been linked to the formation of some choroid plexus tumors. Rarely, certain gene changes that can be passed down through families have been linked to a higher chance of developing choroid plexus carcinomas.

Choroid plexus tumors arise from a structure in the brain called the choroid plexus. It lines the ventricles (fluid-filled cavities) of the brain and its primary function is to produce cerebrospinal fluid (CSF). Choroid plexus tumors almost always form within the ventricles. They can also form in other regions of the CNS.

Source: NCI https://www.cancer.gov/rare-brain-spine-tumor/tumors/choroid-plexus-tumors