[Ultrasound diagnosis of pulmonary infarction in emergencies. A case presentation]

Pulmonary infarction is a parenchymal ischemic lesion that occurs in the context of a pulmonary embolism when arterial blockage deprives perfusion to that area and the adjacent bronchial circulation does not provide the necessary flow. It appears in approximately 40% of pulmonary embolisms. Emergency Physicians are able to diagnose a pulmonary infraction at the patient bedside, in a quick, easy, safe and efficient way with the availability of ultrasound in our Emergency Rooms and Health Centres. The possibility of approaching the aetiology, firstly with a clinical suspicion then adding risk factors, symptoms, clinical and radiological signs and the use of in situ imaging, increases the sensitivity and specificity of the diagnosis.