<unk><unk> es and<unk>  cysts are two common congenital malformations. Each involves the external ear. The difference between them is that a cyst does not connect with the skin, but a<unk>  does. Frequency of<unk><unk>  differs depending the population: 0.1–0.9% in the US, 0.9% in the UK, and 4–10% in Asia and parts of Africa.<unk><unk> es are inherited features, and frequently appear next to both ears.<unk><unk> es can be associated with other defects that are not visible, one example being Branchiootorenal syndrome.
Preauricular sinus and cyst
Median mandibular cyst
Enamel pearl
Weathering nodule of ear
Omphalolith
Malgaigne's bulge
Protruding ear
Salivary gland fistula