Sakai Hiroya, Miki Takamitsu, Tamai Kazuya, Yamato Minoru, Saotome Koichi
Department of Orthopaedic Surgery, Dokkyo University School of Medicine, 880 Kitakobayashi, Mibu-machi, Shimotsuga-gun, Tochigi 321-0293, Japan.
Magn Reson Med Sci. 2002 Dec 15;1(4):233-6. doi: 10.2463/mrms.1.233.
Aneurysms involving the infrapopliteal arteries are unusual and in most cases result from trauma. Nontraumatic aneurysms of the infrapopliteal arteries are very rare. We report a case of an aneurysm of a branch of the posterior tibial artery. The clinical manifestations and the findings from magnetic resonance imaging and computed tomography led us to make a preoperative diagnosis of schwannoma. Histologic examination of the excised specimen suggested that this lesion was likely a true aneurysm.
累及腘下动脉的动脉瘤并不常见，多数情况下由创伤引起。腘下动脉的非创伤性动脉瘤非常罕见。我们报告一例胫后动脉分支动脉瘤病例。临床表现以及磁共振成像和计算机断层扫描结果使我们术前诊断为神经鞘瘤。切除标本的组织学检查提示该病变可能是真性动脉瘤。
