<unk> s are a rare type of cancer that occur from the brain tissue called choroid plexus of the brain. These<unk> s usually occur in children younger than 2 years and are classified according to the WHO classification of the<unk> s of the central nervous system:
Choroid plexus tumor
Choroid plexus papilloma
Choroid plexus cyst
Choroid plexus carcinoma
Central nervous system cyst
Craniopharyngioma
Cranio-lenticulo-sutural dysplasia
Jugular foramen syndrome