PT - JOURNAL ARTICLE AU - Eldon Matthia AU - Ellery Altshuler AU - Dhaval K Naik AU - Ellen C Keeley TI - Acute coronary syndrome as the first presentation of antiphospholipid antibody syndrome AID - 10.1136/bcr-2021-242872 DP - 2021 Jul 01 TA - BMJ Case Reports PG - e242872 VI - 14 IP - 7 4099 - http://casereports.bmj.com/content/14/7/e242872.short 4100 - http://casereports.bmj.com/content/14/7/e242872.full SO - BMJ Case Reports2021 Jul 01; 14 AB - We describe a case of a 42-year-old man who presented with anginal chest pain. He had objective evidence of ongoing cardiac injury. After initial treatment for coronary arterial disease, cardiac catheterisation revealed diffuse coronary arterial thrombosis with embolisation. Follow-up testing implicated new-onset antiphospholipid antibody syndrome as the aetiology.