This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Coronary hea disease may manifest as all, except - 
Select and explain. 
A. Angina on effo, B. Cardiomyopathies, C. Myocardial infarction, D. Sudden death
B: Cardiomyopathies
Answer: B: Cardiomyopathies 
Explanation: Ans. is 'b' i.e., CardiomyopathyIschemic hea disease o Ischemic hea disease (IHD) is the generic designation for a group of closely related syndromes resulting from myocardial ischemia.o There is an imbalance between the supply (perfusion) and demand of the myocardium.o In most of the cases (more than 90% of cases), myocardial ischemia is due to atherosclerotic obstruction of coronary aery.o Thus, IHD is often referred to as coronary aery disease (CAD) or coronary hea disease.o Ischemic hea diseases can be divided into ?1. Acute coronary syndrome(a) Unstable angina(b) Myocardial infarction(c) Sudden cardiac death2. Stable (classical) angina3. Prinzmetal angina