Successfully treated unstable angina pectoris in a young Japanese female

A 25-year-old Japanese female complaining chest oppression and palpitation was admitted to hospital under the presumptive diagnosis of ischemic heart disease (IHD) although no obvious underlying disease associated with MD was detected. Coronary angiography showed stenosis at the proximal site of lef t anterior descending artery (LAD), with dilatation and tortuosity at the b ifurcation of the first and the second septal branches. Intravascular ultra sound imaging of the LAD showed intimal thickness without calcification at the site of stenosis. The stenosis was successfully and smoothly dilated by percutaneous transluminal angioplasty. Even with precise evaluation, the c ause of the coronary artery disease in this young female patient was not cl arified. Further careful follow-up is needed.