Coronal CT of the brain showing a<unk>  A<unk>  is a cyst at the level of the<unk><unk>  of the brain. They are usually asymptomatic and do not require treatment.
Choroidal fissure cyst
Paradental cyst
Otic pit
Dentigerous cyst
Choroid plexus papilloma
Choroid plexus cyst
Nuchal fibroma
Spiradenoma