Left circumflex artery fistula to left atrium: a rare case report
Kaoutar Imrani1, Sanae Amalik1, Nabil Moatassim Billah1
1Radiology department, Ibn Sina University Hospital, Mohammed V University, Rabat.
Insights
This study details a rare case of a left circumflex coronary artery to left atrial fistula, an uncommon congenital coronary anomaly. Accurate CT angiogram imaging is crucial for classifying these fistulas and guiding treatment.
Area of Science:
- Cardiology
- Radiology
- Congenital Anomalies
Background:
- Coronary artery fistulas are rare congenital anomalies affecting coronary artery termination.
- They are broadly classified into cameral, pulmonary, and bronchial types.
- Left circumflex coronary artery to left atrial fistulas represent an exceptional subtype.
Observation:
- A rare case of a left circumflex coronary artery to left atrial fistula is presented in a 31-year-old male.
- This presentation is an uncommon manifestation of coronary termination anomalies.
Findings:
- Computed tomography (CT) coronary angiograms are essential for precise anatomical classification of coronary fistulas.
- Detailed imaging must specify the fistula's origin, path, size, and termination point.
- Accurate characterization of the fistula's origin and drainage site is critical for therapeutic planning.
Implications:
- Precise anatomical classification via CT angiography is vital for effective management of coronary artery fistulas.
- Understanding the specific drainage site of the fistula has direct therapeutic consequences.
- This case highlights the importance of advanced imaging in diagnosing and managing rare coronary anomalies.
Abstract:
Coronary artery fistulas are rare congenital anomalies of coronary termination. There are 3 types: (1) cameral coronary fistulas, (2) pulmonary coronary fistulas, and (3) bronchial coronary fistulas. Left circumflex coronary artery to left atrial fistula are exceptional. Imaging, especially the CT angiogram, must establish an anatomical classification of the fistula for therapeutic purposes, by specifying its origin, its path, its size and its termination. We report a rare case of the left circumflex coronary artery to left atrial fistula in a 31 year old man, which is an uncommon presentation of coronary termination anomalies. The CT coronary angiogram must describe the origin segment of the fistula and the drainage site which have therapeutic consequences.
