A Popliteal Vein Aneurysm Accompanied by Lower Persistent Sciatic Vein

Abstract

Popliteal venous aneurysms (PVAs) are rare. Surgical treatment is recommended because of the risk of deep vein thrombosis and fatal pulmonary embolism. A persistent sciatic vein (PSV) is also a rare anomaly. We report a case of a PVA accompanied by a lower PSV. A 70-year-old man was admitted due to left leg heaviness. He had undergone ablation of both great saphenous veins 6 years prior to the admission. Duplex ultrasound showed a PVA on his left leg, which was 3.2 x 2.4 cm in size. The patient was treated with tangential aneurysmectomy with lateral venorrhaphy. His symptom gradually resolved. He received warfarin at a therapeutic range for 3 months. Duplex ultrasound at 6 months later showed no evidence of any recurrent aneurysm or venous reflux. His follow-up has revealed no complications for 18 months. Surgical treatment and perioperative therapeutic anticoagulation are recommended for treating PVAs. Tangential aneurysmectomy with venorrhaphy is the most common and the simplest surgical method.