Ng S H, Ko S F, Wan Y L, Tang L M, Ho Y S
Department of Radiology, Chang Gung Medical College, Tao Yuan, Taiwan, Republic of China.
Br J Radiol. 1998 Mar;71(843):329-31. doi: 10.1259/bjr.71.843.9616246.
We report a case of cervical ecchordosis physaliphora in an elderly man who presented with hemihypoaesthesia and contralateral hemiparesis. MRI showed a well defined, non-enhancing extradural mass lesion on the dorsal surface of the odontoid process of the axis. The lesion was of intermediate signal intensity on T1 weighted images and of low signal intensity on T2 weighted images. CT showed a small bony defect on the adjacent cortex of the odontoid process. Recognition of the imaging features of ecchordosis physaliphora is helpful in suggesting the diagnosis and differentiating the lesion from chordoma.
我们报告一例老年男性颈椎泡状脊索瘤病例，该患者表现为偏身感觉减退和对侧偏瘫。MRI显示枢椎齿状突背侧有一个边界清晰、无强化的硬膜外肿块病变。该病变在T1加权图像上呈中等信号强度，在T2加权图像上呈低信号强度。CT显示齿状突相邻皮质有一个小的骨质缺损。认识泡状脊索瘤的影像学特征有助于提示诊断并将该病变与脊索瘤相鉴别。
