What is left ventricular hypertrophy with inferior myocardial infarction in a 15 yo boy?

Wrong diagnosis? : Is 15 yo healthy? Why was he evaluated? Previous cardiac history? Autoimmune disorder? Kawasaki disease? Sickle cell disease? Diabetes or cancer? If not, then it sounds like an adult cardiologist misread a child's ekg. Often an adolescent's ekg will look like left ventricular hypertrophy because of the strength of the electrical impulse and thinness of the chest wall compared to an adult.

Unusual: This is rare, many possible causes: congenital aortic stenosis, hypertrophic cardiomyopathy, abnormal coronary anatomy, .... You should see a pediatric cardiologist.