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斑块状脑膜瘤虽好发于蝶骨嵴,但也有围绕脊髓呈环形斑块状生长者.在脊膜瘤中,X线钙化很少见,约占1～5%.本文作者报告二例胸腰段脊膜瘤,其特点为斑块状生长.例1,76岁,女,左下肢无痛性麻木4年,入院时扶行,括约肌功能障碍.T_5以下皮肤浅感觉障碍及双足趾、踝关节振动觉、位置降低.Stancl试验站立不稳,Romberg氏征阳性.脊髓碘水造影显示T_(6-7)平面完全梗阻,呈硬膜外病变特征.CT扫描见T_(5-6)平面有半环状钙化影,无增强效应.此征
Although plaque-like meningiomas occur predominantly in the sphenoid ridges, there are also ring-shaped plaque-like growths around the spinal cord. In meningiomas, X-ray calcification is rare and accounts for approximately 1 to 5%. The authors report two cases. Thoracic and lumbar meningioma, characterized by plaque growth. Example 1, 76-year-old, female, left lower limb painless numbness for 4 years, admission at admission, sphincter dysfunction. Superficial sensory disturbances below T_5 and bipedal Toe, ankle joint vibration perception, position reduction. Stancl test standing instability, Romberg’s sign positive. Iodine aqueous radiography of the spinal cord shows complete obstruction of the T_ (6 -7) plane, showed an epidural lesion characteristics. CT scan see T_ (5- 6) There is a semicircular calcification in the plane, no enhancement effect.