Anomalous origin of the left circumflex artery from the right coronary sinus with an interarterial course: diagnosis

Jin Hur1, Young-Jin Kim, Ji Eun Nam

  • 1Department of Diagnostic Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea.

Insights

A rare heart defect, anomalous left circumflex coronary artery originating from the right sinus, was diagnosed. This coronary artery anomaly follows an interarterial course between the pulmonary artery and aorta.

Area of Science:

  • Cardiology
  • Radiology
  • Anatomical Pathology

Background:

  • Congenital coronary artery anomalies are rare but can lead to significant cardiovascular events.
  • Anomalous origin of the coronary arteries from the aorta is the most common type of anomaly.

Observation:

  • A case is presented involving an anomalous origin of the left circumflex coronary artery (LCX).
  • The LCX originated from the right coronary sinus.
  • The anomalous LCX followed an interarterial course, passing between the pulmonary artery and the aorta.

Findings:

  • Multidetector row computed tomography (MDCT) was utilized for diagnosis.
  • MDCT provided detailed visualization of the anomalous coronary artery anatomy and its course.
  • The specific anatomical course between the great arteries was clearly delineated.

Implications:

  • Accurate diagnosis of coronary artery anomalies is crucial for risk stratification and management.
  • MDCT is a valuable non-invasive tool for diagnosing complex coronary artery anomalies.
  • Understanding the precise course of anomalous coronary arteries is essential to prevent potential complications such as myocardial ischemia or sudden cardiac death.

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