Unduly long left main (79 mm) coronary artery arising from right coronary sinus in a 64-year-old diabetic man.BMJ Case Rep 2019; 12(7)BC
Coronary artery anomalies are usually an incidental finding on coronary angiogram. Most of them are benign, although few of them are malignant which may cause sudden cardiac death. A 64-year-old diabetic, hypertensive man underwent coronary angiography for evaluation of exertional dyspnoea, and angina which revealed an anomalous left main coronary artery (LMCA) arising from right coronary sinus which was unduly long (79 mm) but free from any disease. To the best of our knowledge after extensive search in literature, this is the longest LMCA to be ever reported. The patient was managed conservatively.