Severe calcification in left main stem coronary artery stenosis visible on routine chest radiograph.

Coronary calcification is a strong predictor of significant coronary stenosis in symptomatic patients. While discrete calcification within coronary arteries is only detected by sensitive methods such as computed tomography, severe calcification can already be seen on the plain chest radiograph. In this article, we describe a patient with a high grade left main stem coronary artery stenosis who presented with a severe focal calcification on the plain chest radiograph in projection of the offspring of the left coronary artery.