Pulmonary Fat Embolism (PFE) is seen when fatddroplets embolized in the pulmonary microcirculation after trauma, surgery and several medical conditions. Emboli reach the pulmonary microcirculation via the veneous route and can elicit a response which can result in the development of ARDS. Massive embolism can result in acute right sided heart failure. Fatdroplets can pass though the lungs and embolize via the arterial system produce symptoms collectively known as Fat Embolism Syndrome. Symptoms can develope from 6 hours to 15 days post trauma and range from mild respiratory impairment to fatal cardiovasculary collapse.

We present a case of rapidly progressive ARDS and cardiovasculary collapse in a trauma patient due to PFE with no symptoms of right sided heart failure.