Unusual intramural course in an anomalous left coronary artery from the opposite coronary sinus
Giuliano Giusti1, Mariantonia Villano2, Marco Pozzi3
1Unit of Pediatric Cardiology, Gaslini Pediatric Hospital, Genoa, Italy.
Insights
An anomalous left coronary artery originating from the opposite sinus can have an intramural course without typical CT findings. This challenges previous assumptions, suggesting further investigation is needed for accurate diagnosis.
Area of Science:
- Cardiology
- Radiology
- Anatomical Pathology
Background:
- Anomalous coronary arteries are congenital heart defects.
- Intramural coronary artery courses within the heart wall.
- Diagnosis often relies on specific computed tomography (CT) findings.
Observation:
- A case of anomalous left coronary artery from the opposite sinus with intramural course was observed.
- The patient's coronary CT showed no slit-like ostium, acute take-off, or proximal narrowing.
- This presentation differed from typical CT findings in previously reported intramural coronary artery cases.
Findings:
- The absence of classic CT indicators (slit-like ostium, acute take-off, proximal narrowing) does not exclude an intramural coronary artery course.
- Computed tomography findings in anomalous coronary arteries with intramural segments can be variable.
- The septal commissure level was identified as the location of the intramural segment.
Implications:
- Diagnostic criteria for intramural coronary arteries may need revision.
- Further research is necessary to understand the full spectrum of CT findings for anomalous coronary arteries.
- Accurate identification of intramural coronary arteries is crucial for risk stratification and management.
Abstract:
We report a case of a patient with an anomalous left coronary artery originating from the opposite coronary sinus with evidence of intramural course at the level of the septal commissure and no slit-like deformation of the coronary ostium, acute take-off, or proximal vessel narrowing. According to previous publications, patients with anomalous coronary artery and intramural segments identified at surgery had coronary CT findings of acute take-off angle or proximal vessel narrowing; slit-like orifice; and elliptical cross-sectional shape. Although further investigation is required, we suggest that the intramural course may not be ruled out based on the absence of slit-like ostium, acute take-off, or proximal vessel narrowing.
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