Definition: "Pulmonary embolism is a sudden blockage of one of the blood vessels in the lungs. It is usually caused by a blood clot from the leg that travels through the body and the heart before reaching the lungs."
Comprehensive overview.
Sapala Bariatric Medical Abstract. "Pulmonary embolism (PE) is a leading cause of death following gastric bypass operations for morbid obesity. Although its incidence appears to be stable, the number of bariatric operations performed annually is increasing considerably; hence, the isolated fatal PE is no longer a rare occurrence."
See also the article, Male Blood Clots.
Another bariatric medical abstract. "Venous thromboembolic (VTE) disease is a much-feared complication of bariatric surgery. The most common unexpected cause of death in the morbidly obese patient is pulmonary embolism (PE)."
Athens, Greece. Resolution of massive pulmonary embolism. "Pulmonary embolism (PE) due to deep venous thrombosis (DVT) consists (as) the third common cardio-vascular disease after acute ischemic syndromes and stroke. However, DVT and PE are frequently under-diagnosed..."