title: Single left coronary artery with origin of right coronary artery from left circumflex: a case report.
abstract: BACKGROUND
  A 40-years-old female presented with intermittent chest pain and dyspnea on exertion.
  
  
  METHODS
  Electrocardiography showed sinus rhythm with ST-depression in inferior and lateral leads. Subsequent exercise treadmill testing revealed significant ST-depression in V4-V5 and V6 leads. Coronary angiography later showed a single left coronary artery with right coronary artery arising from left circumflex artery, a rare anomaly of coronary arteries. No atheromatous lesion was seen during angiography.
  
  
  CONCLUSIONS
  The dignosis of this anomaly is importsnt because the symptoms cannot be differentiated from atherosclerotic coronary artery disease.
authors.affiliation: Internal Medicine Department, Jahrom University of Medical Science, Iran. eshraghiana@yahoo.com.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Shojaie
authors.forename: Ahad
authors.initials: A
authors.lastname: Eshraghian