Massive pulmonary embolism (PE) constitutes the most unexpected cause of death in necropsy. Consequently, prompt diagnosis and treatment is considered imperative. This article reports the case of a 37-year-old man who presented with cardiogenic shock due to PE as detected with bedside echocardiography in the emergency department. The authors wish to emphasize the usefulness of emergency bedside echo-Doppler for a prompt diagnosis and treatment of this life threatening condition.