眼眶蔓状血管瘤的MRI诊断

目的探讨眼眶蔓状血管瘤的ＭＲⅠ表现和诊断价值。方法经病理及临床证实的眼眶蔓状血管瘤９例。采用西门子公司Ⅰｍａｐｃｔ型超导磁共振成像仪行眼眶部ＭＲⅠ扫描。结果５例较小病灶位于肌锥内，形态欠规则，眼外肌受压。１例位于眶尖，３例肿块超出眼眶范围，或经视神经管向颅内生长，或肿块侵犯眶内侧壁达筛窦。结论ＭＲＩ能清晰显示肿瘤部位、范围，是优良的诊断方法

MRI diagnosis of orbital Cirsoid hemangioma

Objective To study the MRI features and value in diagnosis of obital cirsoid hemangioma.Methods 9 cases,proved by pathology and clinic,were scanned on orbits using Siemens Impact super-conductor magnetic resonance scanner.Results 5 cases,siting in muscular cone,pressed extraocular museles and were not well-shaped.1 case sited in orbital apex.3 cases expanded out of orbits,of ahich spread to intracranium through optie nerve canal,or inveded from the internal wall of orbits to ethmoidal sinus.Conclusion MRI can show the posibion and range of the rumor clearly,and it is a fine diagnostic technigue.