What's the difference between i.e. and e.g.?
Costen's syndrome Cos·ten's syndrome (kŏs'tənz)
A complex of symptoms that includes loss of hearing, tinnitis, dizziness, headache, and a burning sensation of the throat, tongue, and side of the nose; its anatomical and physiological causes are uncertain but was originally believed to be the result of temporomandibular joint syndrome.