What is the difference between a coronary artery spasm and angina?

What is the difference between a coronary artery spasm and angina?

Coronary artery spasms may lead to chest pain known as angina. While artery blockage from cholesterol plaque is a more common cause of angina, coronary spasms can also result in chest pain called vasospastic angina. Unlike angina from plaque, vasospastic angina can often happen while you are resting.