Symptom vs disease: Angina, or chest pain or angina equivalents (there are many) are a symptom usually of heart disease. Coronary artery disease, cad, is a progressive disease: plaque builds up in the arteries of the heart and this can lead to blockage(s), ischemia (insufficient blood flow) which can cause pain or angina.
Answered 1/17/2014
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In specificity : Angina is chest pain due to diminished blood flow to heart muscle; maybe from constriction or blockage. Coronary disease is abnormality in coronary artery itself . Heart disease is abnormality in any part of the heart.
Answered 10/2/2013
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