A<unk>  is a set of medical signs and symptoms which are correlated with each other and often associated with a particular disease or disorder. The word derives from the Greek σύνδρομον, meaning "concurrence". When a<unk>  is paired with a definite cause this becomes a disease. The discipline that deals with the diagnosis of<unk> s is also referred to as<unk> logy or dysmorphology. In some instances, a<unk>  is so closely linked with a pathogenesis or cause that the words<unk> , disease, and disorder end up being used interchangeably for them. This substitution of terminology often confuses the reality and meaning of medical diagnoses. This is especially true of inherited<unk> s. About<unk>  third of all phenotypes that are listed in OMIM are described as dysmorphic, which usually refers to the facial gestalt. For example, Down<unk> , Wolf–Hirschhorn<unk> , and Andersen–Tawil<unk>  are disorders with known pathogeneses, so each is more than just a set of signs and symptoms, despite the<unk>  nomenclature. In other instances, a<unk>  is not specific to only<unk>  disease. For example, toxic shock<unk>  can be caused by various toxins; premotor<unk>  can be caused by various brain lesions; and premenstrual<unk>  is not a disease but simply a set of symptoms. If an underlying genetic cause is suspected but not known, a condition may be referred to as a genetic association (often just "association" in context). By definition, an association indicates that the collection of signs and symptoms occurs in combination more frequently than would be likely by chance alone.<unk> s are often named after the physician or group of physicians that discovered them or initially described the full clinical picture. Such eponymous<unk>  names are examples of medical eponyms. Recently, there has been a shift towards naming conditions descriptively (by symptoms or underlying cause) rather than eponymously, but the eponymous<unk>  names often persist in common usage.
Syndrome
Otodental syndrome
Confusion
Childhood amnesia
Hypnoid state
Tremédica
Polio-like syndrome
Emergence delirium