Allergic myocardial infarction (Kounis Syndrome)- non-ST elevation MI following Omnipaque contrast.

Kounis Syndrome is an acute coronary syndrome in the setting of mast cell activation. Mast cell activation can be due to anaphylaxis, anaphylactoid reaction, allergies, or hypersensitivities. Three reported variants of Kounis Syndrome include: vasospastic allergic angina, allergic myocardial infarction, and stent thrombosis. Herein, we described a case of Type 2 Kounis Syndrome following iodinated contrast infusion for a fistulogram, which manifested as a rare non-ST elevation myocardial infarction (NSTEMI).