We describe a case of previously healthy 72-year-old man, who presented with 
rest angina. The ECG revealed sinus rhythm, biphasic T waves with preserved R 
waves in V1-V4 precordial leads. Subsequent evaluation revealed the normal serum 
cardiac marker levels and echocardiography with the coronary angiography showing 
a critical lesion in the proximal left anterior descending artery. Thus it was 
diagnosed as Wellens' syndrome. In our case, we highlight the subtle though 
classical ECG findings of Wellens' syndrome and its specific angiographic 
correlation. It can be of vital importance to identify these changes and 
intervene in time appropriately so as to avoid the development of myocardial 
infarction that carries a substantial morbidity and mortality. Important aspects 
of diagnosis and management have also been reviewed.