肺硬化性血管瘤的CT表现

CT findings of pulmonary sclerosing hemangioma

目的:探讨肺硬化性血管瘤(PSH)的CT表现特点,提高术前诊断率。方法:分析18例病理确诊的PSH的临床及CT资料,总结CT表现特征。结果:18例PSH均为单发病灶,其中11例为类圆形,5例为卵圆形,1例为不规则形,1例为紧贴胸膜的弧形病灶。13例病灶为较均匀实性密度,1例病灶为磨玻璃密度,4例病灶内见钙化。2例见"晕征",1例见"空气新月征",2例见"瘤周肺气肿"。9例PSH行增强检查,表现为均匀和不均匀强化者各4例,无强化者1例。7例见"贴边血管征"。结论:PSH好发于中老年女性,CT表现具有一定特征,仔细分析CT征象有助于减少误诊。

Objective:To investigate the CT features of the pulmonary sclerosing hemangioma(PSH)for improving the preoperative diagnostic rate.Methods:Clinical and CT information was obtained in18cases of pathologically confirmed PSH,and the CT features were analyzed.Results:PSH was solitary in the18cases,in which the lesion was presented as round shape in11,oval shape in5and irregular in1.One case was arc lesions closing to the pleura,13cases were presented homogeneous and solid density.Grinding glass density was seen in1case,calcification in4,“halo sign”in2,“air crescent sign”in1,and“tumor peripheral emphysema”in2.Enhanced CT scan was performed in9cases,and demonstrated homogeneous and inhomogeneous enhancement in respective4cases,and no enhancement in1.Seven cases showed“welt vessel sign”.Conclusion:PSH commonly occurs in middle aged and old women,and presents specific CT features.Careful analysis of the CT findings may reduce misdiagnosis of this entity.