[Myocardial infarction revealing an antiphospholipid syndrome in a 27-year-old woman].

We report the case of a 27 year old woman, with no vascular risk factors other than moderate smoking, admitted for a first acute anterior myocardial infarction. Emergency coronarography detected an isolated thrombosis, localised at the level of the middle section of the anterior inter-ventricular artery in an otherwise normal coronary network. Angioplasty of the artery with direct stenting was performed successfully and the follow up was uncomplicated.