<unk>  is a rare type of cancer that occurs in the<unk><unk>  of the brain. A<unk>  in this location usually occurs in children younger than 2 years and is one of several kinds:
Atypical teratoid rhabdoid<unk> <unk><unk>  carcinoma<unk><unk>  papilloma
Choroid plexus tumor
Choroid plexus papilloma
Craniopharyngioma
Arachnoid cyst
Hydrosyringomyelia
Chordoma
Pineoblastoma
Subdural hygroma