Renal Vein Thrombosis Occurring in Association with Oral Contraceptives: A Case Report.

Peripheral venous thromboembolism is a well-known complication of hormonal contraception, but reports on its association with visceral vein thrombosis is limited. We report the case of left renal vein thrombosis (RVT) associated with oral contraceptives (OCs) and concurrent smoking. The clinical presentation of this patient was acute left flank pain. Computed tomography revealed left RVT. The OC was discontinued, and we initiated anticoagulation with heparin and switched to edoxaban. Computed tomography 6 months later showed complete resolution of the thrombosis. This report alerts us regarding the importance of OCs as a risk factor for RVT.