Angina pectoris or myocardial infarction in a child, youth, or young adult often results from anomalies of the coronary arteries, particularly when hypertension and metabolic disease are not present. Two men, 18 and 25 years old, respectively, who had myocardial infarctions, were investigated with cardiac catheterization and selective retrograde angiocardiography. In both cases a small hypoplastic right coronary artery was demonstrated. A revascularization procedure was done on one patient.
Grossman LA, Adams CW. Diminutive Coronary Artery SyndromeReport of Two Cases in Young Men. JAMA. 1964;188(13):1111–1114. doi:10.1001/jama.1964.03060390013003
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