A Widow-Maker and a Doppelganger: An Anomalous Case of the Coronaries

Jahanzeb Malik1, Tayyaba Zahid1, Omaid Majedi1

  • 1Cardiology, Rawalpindi Institute of Cardiology, Rawalpindi, PAK.

Cureus
|September 14, 2020
PubMed

Insights

A rare case of acute myocardial infarction involved a dual left anterior descending artery and an anomalous left circumflex artery originating from the right coronary sinus, alongside left main stem stenosis.

Area of Science:

  • Cardiology
  • Human Anatomy
  • Medical Case Reports

Background:

  • Coronary artery anomalies are uncommon congenital variations.
  • The anomalous origin of the left circumflex (LCX) artery from the right coronary sinus is rare.
  • A 'double' or dual left anterior descending (LAD) artery is exceptionally rare.

Observation:

  • A patient presented with acute myocardial infarction.
  • The condition involved a critical distal stenosis in the left main stem (LMS).
  • The LMS supplied both a dual LAD and an aberrant LCX originating from the right coronary sinus.

Findings:

  • The case highlights a complex combination of rare coronary artery anomalies.
  • Acute myocardial infarction was attributed to LMS pathology in the presence of these anomalies.
  • A clot was present within the stenosed LMS.

Implications:

  • This case underscores the importance of recognizing rare coronary anomalies in clinical practice.
  • Accurate diagnosis and understanding of complex coronary anatomy are crucial for managing myocardial infarction.
  • Such anomalies can predispose individuals to significant cardiovascular events.

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