海绵窦海绵状血管瘤的影像特征及其鉴别诊断

目的：探讨海绵窦区海绵状血管瘤的影像特征及其鉴别诊断,提高影像定性诊断率.方法：6例经手术病理证实的海绵窦区海绵状血管瘤患者,全部行头颅MRI平扫和增强扫描,其中1例行DSA检查,2例行CT检查.结果：MRI平扫病灶形态呈哑铃状或足底向外的葫芦状,T1WI呈等、低信号,T2WI呈均匀明显高信号,增强后明显强化.CT表现呈圆形略高密度均一肿块,增强后同样明显强化,DSA不显影,术前影像定性诊.断准确率50%（3/6）.结论：海绵窦区海绵状血管瘤CT表现与其它实体肿瘤相比无特异性,定性诊断困难,MRI表现有其特异性,呈哑铃形或葫芦状的等、长T1,长T2信号改变,较具有特征性,但需与脑膜瘤、垂体瘤及神经源性肿瘤鉴别.

The image feeatures and differential diagnosis of cavernous hemangiomas in the cavernous sinus

Objective: To study the imaging features and to assess the value of MRI in differential diagnosis if cavernous angioma(CA) in the cavernous sinus. Methods: Six cases of CA in the cavernous sinus with pathologic confirmation were investigated. All patients underwent MRI and enhanced scaning. One received DSA and 2 received CT examination. Results: Dumbbell or bottom outwardly of bottle gourd form lump, displayed or isointense signal on T1WI and high-signal intensity on T2WI, the lesions were evenly enhanced. A circular slightly high density uniform lump, intensified obviously after strengthening was presented in CT image The image qualitative diagnosis accurate nate bolole the opecation was 50%(3/6). Conclusion: The CT resembles in CA had no particularity compared with the other solid tumors. The MRI image of Dumbbell or bottom outwardly of bottle gourd form and isointense or long T1 and long T2 signal changes was the characteristics of CA. But differential diagnosis from the meningiomas, pituitary adenoma and neurilemoma are needed.