椎管内硬膜外海绵状血管瘤的MRI表现及鉴别诊断

    MRI findings and differential diagnosis of spinal epidural cavernous hemangioma

    • 摘要: 目的:探讨椎管内硬膜外海绵状血管瘤的MRI表现及鉴别诊断价值。方法:将经手术病理证实的6例椎管内硬膜外海绵状血管瘤的MRI表现与硬膜外其他病变进行鉴别。结果:6例T1加权像呈等或略高信号,T2WI为高信号,增强扫描均匀一致强化。5例位于胸段椎管内,1例位于颈胸段,均沿脊髓长轴生长。2例位于脊髓背侧,呈钳状包绕脊髓,4例位于脊髓侧后方,沿相邻椎间孔向外生长,并使椎间孔扩大。结论:椎管内硬膜外海绵状血管瘤是罕见的良性病变,并有其特征性表现。MRI是目前最为可靠的术前检查手段,但最终确诊仍需结合临床及病理。

       

      Abstract: Objective:To discuss the MRI findings and differential diagnosis of spinal epidural cavernous hemangioma.Methods:Six cases of spinal epidural cavernous hemangioma confirmed by operation and pathology were retrospectively analyzed and compared with other epidural neoplasm.Results:The masses in the six cases showed hyperintensity signal on T2-weighted images,iso-or hyperintensity signal on T1-weighted images and homogeneous strong enhancement.The lesions were at the thoracic level (n=5) and cervical-thoracic level (n=1).The masses were located in the epidural space and extended parallel with the long axis of the spine.Two cases were at the back of the spinal cord,4 cases were at the left or right side back of the spinal cord;and the adjacent intervertebral neural foramen were widened.Conclusions:Spinal epidural cavernous hemangioma is rarely seen in epidural space and have some MRI features.MRI is the most reliable examination means before operation,but definite diagnosis depends on clinical and pathological features.

       

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