<unk> s are classically found in the posterior triangle of the neck.<unk> s are increasingly diagnosed by prenatal ultrasonography. A common sign is a neck growth. It may be found at birth, or discovered later in an infant after an upper respiratory tract infection.<unk> s can grow very large and may affect breathing and swallowing. Some symptoms may include a mass or lump in the mouth, neck, cheek, or tongue. It feels like a large, fluid-filled sac. In addition,<unk> s can be found in other body parts, such as the arms, chest, legs, groin, and buttocks.<unk> s are also often seen in Turner's syndrome, although a patient who does not have the syndrome can present with this condition.
Cystic hygroma
Subdural hygroma
Encephalocele
Arachnoid cyst
Choroid plexus cyst
Porencephaly
Craniopharyngioma
Choroid plexus papilloma