A 46-year-old female was referred for evaluation of central chest pain unrelated to exertion. She was known to have diabetes mellitus, hypertension, and dyslipidaemia. Physical examination, routine blood investigations, electrocardiogram and chest radiograph were unremarkable. Stress myocardial perfusion imaging demonstrated normal perfusion of the left ventricle (LV) with no ischaemia detected. However, because of her cardiovascular risk factor profile and recurrent episodes of chest pain, computed tomography coronary angiography (CTA) was performed to further evaluate the cause of chest pain
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