J Int Med Res. 2026 Jan;54(1):3000605261416659. doi: 10.1177/03000605261416659. Epub 2026 Jan 31.
ABSTRACT
We report a rare case of a left anterior descending artery originating from the right coronary sinus. The original left anterior descending artery was small and appeared occluded; it was initially misdiagnosed as a chronic total occlusion lesion. However, a displaced left anterior descending artery was identified during angiographic evaluation. Although a left main coronary artery arising from the right coronary sinus is uncommon (prevalence of 0.03%), to the best of our knowledge, this is the first reported case of an ectopic left anterior descending artery originating from the right coronary sinus.
PMID:41618763 | DOI:10.1177/03000605261416659