An Uncommon Complication of Streptokinase: Large Spontaneous Iliopsoas Hematoma.

Streptokinase is a fibrinolytic agent that enhances plasmin activation and is used in selected patients with acute ST elevation myocardial infarction (STEMI). Similar to the other thrombolytics, a common side effect is bleeding, especially from venous puncture sites. Here, we present a case of acute anterior wall STEMI complicated by large spontaneous iliopsoas hematoma after streptokinase administration. With conservative management, the course of the disease was uneventful, and the patient was discharged with no symptom and no clinically important sequel.