Abstract
Venous aneurysms are local vessel knobs of the veins. However, the frequency with which superficial venous aneurysms are associated with thromboembolisms remains unclear. We experienced a case of venous aneurysm of the great saphenous vein with a thrombus that extended rapidly into the common femoral vein. A 70-year-old woman noticed a subcutaneous mass in her right thigh. Echography revealed a vessel knob in the great saphenous vein with a thrombus extending adjacent to the sapheno-femoral junction. Retrospective analysis of previous computed tomography images showed that the thrombus location and range had not changed in the previous month. Four days after her diagnosis, the patient underwent surgery. Echography performed just before the operation revealed that the thrombus had extended into the common femoral vein by 2 cm. Thrombectomy and vessel knob resection were performed. Because the vessel knob in the great saphenous vein was localized as a saclike widening, it was diagnosed as a venous aneurysm. It is important to appropriately address superficial venous aneurysms containing thrombi near the sapheno-femoral junction, including evaluation of thrombotic diathesis and anticoagulant therapy. Because thrombi may develop rapidly, early venous aneurysm resection is recommended.
