[Interstitial pregnancy and management with a single systemic administration of methotrexate].

We report on a patient with an interstitial pregnancy treated with a single systemic dose of Methotrexate (50 mg/m2). After Methotrexate, human chorionic gonadotropin levels decreased to < 5 mIU/ml within 25 days. Six months later, a contrast sonography showed patency of both tubes.