[Myocardial infarction associated with thyrotoxicosis (author's transl)].

The development of massive anteroseptal and high lateral myocardial infarction was observed in a 29-year-old male patient 7 months after symptoms of thyrotoxicosis had appeared. A selective coronaroangiography, performed later, revealed no significant stenosis. It was postulated that coronary embolism, coronary angiospasm and "small vessel disease" were possible causes of the myocardial infarction, while thyrotoxicosis was not thought to have played any causative role.