EN
A 25-year-old female patient with a history of oral contraceptive use was admitted to hospital because of exertional dyspnoea, palpitations, chest discomfort and weakness. Since the clinical presentation was suggestive of some heart disease the patient underwent echocardiography which revealed indirect signs of acute pulmonary embolism. The diagnosis was confirmed with multisliced computed tomography of the pulmonary arteries. Blood test results raised suspicion of antithrombin III deficiency. Enoxaparin and warfarin were used as treatment regimen with good effect and the patient was discharged home without significant symptoms, signs, and with normal echocardiography.