<unk>  is angina associated with objective evidence of myocardial ischemia in the absence of epicardial  coronary artery disease.  Syndrome X has been hypothesized to be a disorder of the coronary microvasculature rather than the large caliber epicardial coronary arteries.
Cardiac syndrome X
Gourmand Syndrome
Thiofanox
Syndrome X
Avellis syndrome
Buschke-Ollendorff syndrome
Noonan syndrome
Currarino syndrome