Wharen R E, Scheithauer B W, Laws E R
J Neurosurg. 1982 Oct;57(4):520-6. doi: 10.3171/jns.1982.57.4.0520.
Thrombosed arteriovenous malformations (AVM's) in patients with no previous history of hemorrhage are uncommon but benign lesions that present with clinical and radiographic findings which are often indistinguishable from those of other mass lesions, particularly low-grade gliomas. The authors report seven cases of thrombosed AVM's presenting as intractable seizure disorders in which the radiographic studies had suggested a low-grade glioma. All seven patients are now seizure-free 2 to 40 months postoperatively. The importance of surgical exploration in the management of such patients is emphasized. A review of 32 cases reported in the literature is presented. The reasons why angiography may fail to demonstrate an AVM, and the possible etiologies for the spontaneous thrombosis of an AVM are discussed.
既往无出血史的患者发生血栓形成的动静脉畸形（AVM）并不常见，但属于良性病变，其临床和影像学表现常与其他占位性病变难以区分，尤其是低级别胶质瘤。作者报告了7例以难治性癫痫发作障碍为表现的血栓形成的AVM，其影像学检查提示为低级别胶质瘤。所有7例患者术后2至40个月均无癫痫发作。强调了手术探查在此类患者管理中的重要性。本文还对文献报道的32例病例进行了综述。讨论了血管造影可能无法显示AVM的原因以及AVM自发血栓形成的可能病因。
