Brodmann M, Stark G, Pabst E, Seinost G, Schweiger W, Szolar D, Pilger E
Division of Angiology, Department of Internal Medicine, Karl-Franzens University Graz, A-8036, Graz, Austria.
Eur J Radiol. 2001 Jun;38(3):209-12. doi: 10.1016/s0720-048x(00)00302-8.
Cystical adventitial degeneration of the popliteal artery is a disorder which is difficult to diagnose, due to the similarity of the symptoms of people presenting with peripheral arterial occlusive disease (PAOD) or popliteal entrapment syndrome. The only thing that differs from patients suffering from PAOD is the lack of typical risk factors for arteriosclerosis. Typical diagnostic procedures like conventional angiography or magnetic resonance Imaging angiography can be negative, too and therefore misleading. The only which is crucial in the diagnosis of cystic adventitial degeneration of the popliteal artery is to know the morphological background of this disorder, namely that it is a cyst of the adventitia of the artery which leads to a dynamic exercise-dependent flow inhibition. We present a 57-year old white male who had a week's history of intermittent claudication in his left calf. He was lacking of typical risk factors for arteriosclerosis and on first examination all pulses in both lower extremities were palpable and Doppler index on both legs was >1. Only duplexsonography revealed a cystic formation impressing the left popliteal artery in the hight of the rift in the popliteal joint.
腘动脉囊性外膜退变是一种难以诊断的疾病，因为其症状与外周动脉闭塞性疾病（PAOD）或腘动脉压迫综合征患者的症状相似。与PAOD患者唯一不同的是缺乏典型的动脉硬化危险因素。传统血管造影或磁共振血管造影等典型诊断程序也可能呈阴性，从而产生误导。诊断腘动脉囊性外膜退变的关键在于了解这种疾病的形态学背景，即它是动脉外膜的一个囊肿，导致动态运动依赖性血流抑制。我们报告一名57岁的白人男性，他有左小腿间歇性跛行一周的病史。他没有典型的动脉硬化危险因素，初次检查时双下肢所有脉搏均可触及，双腿的多普勒指数均>1。只有双功能超声检查显示在腘关节裂隙高度有一个压迫左腘动脉的囊性结构。
