Der Internist
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We describe the case of a 24-year-old woman who was admitted to the emergency department with dyspnea and sinus tachycardia. The suspected diagnosis of pulmonary embolism was confirmed by computed tomography (CT) scan. ⋯ The patient survived without sequelae and was discharged on oral anticoagulation from the hospital 8 days after the initial admission. In our opinion unknown factor-V Leiden in combination with a local form of hormonal contraception (NuvaRing®) was responsible for the deep venous thrombosis of the left leg and the pulmonary embolism.