title: Retroaortic course of the anomalous left main coronary artery: is it a benign anomaly? A case report and review of literature.
abstract: BACKGROUND
  Left coronary artery sharing a common origin with the right coronary artery and taking a retroaortic course is a rare coronary anomaly. It has been considered a benign entity.
  
  
  METHODS
  We report a 19-year-old man who presented with chest pain. Cardiac enzymes were elevated suggesting myocardial ischaemia. Coronary angiography revealed single origin of the coronary artery in the right coronary sinus. The left main coronary artery followed a retroaortic course before bifurcating. The anomalous left coronary artery was dissected and reimplanted in the left coronary sinus. The patient made an uneventful recovery. One year later, he is well with no recurrence of symptoms.
  
  
  CONCLUSIONS
  Surgery to restore the normal anatomic position of the left coronary ostium is advisable whenever this anomaly is discovered.
authors.affiliation: Department of Cardiothoracic Surgery, Sir Charles Gairdner Hospital, Nedlands, Perth, WA, Australia. nkkejriwal@hotmail.com
authors.forename: Nand K
authors.initials: NK
authors.lastname: Kejriwal
authors.forename: Jeremy
authors.initials: J
authors.lastname: Tan
authors.forename: Stephen P
authors.initials: SP
authors.lastname: Gordon
authors.forename: Mark A J
authors.initials: MA
authors.lastname: Newman