SuddenCat

Ear Disease, Absence of the outer ear

Congenital deformity or absence of the outer ear, usually on one side, sometimes on both, is often accompanied by absence of the outer-ear canal. This failure of the primitive gill structures to become properly transformed into the normal outer and middle ear is, in rare instances, hereditary. More often it occurs for no known reason. In some cases it can be traced to the

posted by SuddenCat @ 5:58 AM