Chong V F
Department of Diagnostic Radiology, Singapore General Hospital, Singapore.
Singapore Med J. 1996 Apr;37(2):175-80.
Venography is often requested to confirm the clinical suspicion of deep vein thrombosis (DVT) in patients with calf pain or swelling. Often, no clots could be demonstrated and the patients are discharged without a confirmed diagnosis. It is now being increasingly recognised that a Baker's (popliteal) cyst, ruptured or otherwise, may simulate deep vein thrombosis. Seven patients with a clinical suspicion of DVT were referred for venography but were found to have no thrombi within the deep veins of the calf. These patients were noted to have knee joint abnormalities. Baker's cysts were confirmed on subsequent knee arthrograms, ultrasonography or magnetic resonance imaging (MRI). It is emphasised here that a failure to demonstrate DVT in a patient with signs and symptoms, of DVT should prompt a search for Baker's cyst. The pathological anatomy of Baker's cyst is briefly reviewed with the aid of magnetic resonance images.
对于有小腿疼痛或肿胀的患者，常要求进行静脉造影以证实临床对深静脉血栓形成（DVT）的怀疑。通常，无法显示血栓，患者在未确诊的情况下出院。现在越来越认识到，破裂或未破裂的贝克（腘窝）囊肿可能模拟深静脉血栓形成。7例临床怀疑为DVT的患者被转诊进行静脉造影，但发现小腿深静脉内无血栓。这些患者被发现有膝关节异常。随后通过膝关节造影、超声检查或磁共振成像（MRI）证实为贝克囊肿。在此强调，对于有DVT体征和症状的患者，未能显示DVT应促使寻找贝克囊肿。借助磁共振图像简要回顾了贝克囊肿的病理解剖。
