動靜脈畸形由供血的動脈，引流的靜脈，以及直接連接動脈和靜脈，缺少正常毛細血管床，由發育異常的血管組成的病灶所構成。通常情況下，病變隨著孩子的成長而進展。症狀包括漸進的血管擴張，靜脈壓增高，破壞組織，甚至由於心臟的高輸出狀態造成心臟衰竭。血管畸形不會不經治療而消失，處置方式有外科手術、介入放射學治療、雷射治療或併用各種療法，都曾被用於血管畸形的治療。我們描述了病人目前的症狀以及血管畸形的診斷和治療方法。我們描述一個病人的最初表現是經常性的靜脈曲張。血管造影證實動靜脈畸形。經過三次的栓塞治療後，他的腿部腫脹和疼痛的症狀得到改善。

The AVMs consist of feeding arteries, draining veins, and a nidus composed of multiple dysplastic vascular channels that connect the arteries and veins, with absence of a normal capillary bed. Typically, the lesions grow in proportion to the growth of the child. The symptoms include progressive vascular dilation, venous hypertension, destruction of tissue, and, rarely, cardiac decompensation due to a high output state. A vascular malformation will not disappear without treatment. Surgery, interventional radiology, laser therapy or a combination of techniques are used in the treatment of vascular malformations. We describe our current approach to the diagnosis of vascular malformations as well as therapeutic approaches. We describe a patient whose initial presentation was recurrent varicose vein and the AVM was confirmed by angiography. After three sessions of embolization, the swelling and pain of his leg were improved after whole courses of treatment.