椎管内硬膜外海绵状血管瘤的MRI表现及鉴别诊断

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。

MRI findings and differential diagnosis of spinal epidural cavernous hemangioma

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 le...