肺硬化性血管瘤的CT表现(附10例报告)

目的：探讨肺硬化性血管瘤（PSH）的CT表现，旨在提高对该病的认识及诊断水平。方法：回顾性分析经手术病理证实的t0例PSH患者，其中男1例，女9例，年龄47～68岁，平均57．6岁。10例均行胸部CT检查，其中1例仅行CT平扫，9例行CT平扫及增强扫描。结果：病灶部位：右肺3例，其中上叶1例，中叶2例；左肺7例，其中上叶4例，下叶3例。病灶形态：10例均为圆形、类圆形肺内肿块或结节，境界清晰．分叶不明显（4例有浅分叶）、无毛刺、胸膜牵拉凹陷、卫星病灶及血管集束征等征象。病灶大小：均为单发，最大径1．7～5．1cm，其中〈3cm者6例。病灶密度：CT平扫4例密度较均匀，6例见斑片状稍低密度区，4例见点状或粗大点片状钙化；CT增强均匀强化3例，不均匀强化6例，9例中7僻呈延迟强化。特征性的征象：空气新月征1例、贴边血管征10例、尾征3例、晕征7例。结论：空气新月征、贴边血管征、尾征、晕征等CT征象具有一定的特征性。有助于PsH的术前诊断。

CT findings of pulmonary sclerosing hemangioma

Objective：To study both unenhanced and dynamic enhanced CT features of pulmonary sclerosing hemangi oma （PSH）,in order to improve the understanding and diagnostic level of this diesease. Methods： 10 cases （9 females and 1 male） with surgical and pathological proven PSH were retrospectively studied. The age of all patients were between 47-68 years （mean 57.6）. All of them undwent chest CT scan,9 of them underwent both pre-contrast and post-contrast scan, the other one only had plain CT scan. Results：The location of lesion：3 of 10 cases were in right lung,including 1 in upper lobe and 2 in middle tobe;7 cases were in left lung,including 4 in upper lobe and 3 in lower lobe. All lesions presented as well-de fined round and oval shaped mass or nodule,and without spicules, pleural indentation, deep lobulation, satellite lesions or vessel convergence. However,there were 4 cases with scallop-shaped contour. All cases presented with single lesion with a mean long axis diameters ranged 1. 745. lcm,6 of which were less than 3cm. On plain CT,4 of the 10 cases presented ho mogeneious desity. In 4 of these 10 cases the lesion contained dotted or coarse granular and patchy calcification. Post-con- trast scanning showed homogeneous enhancement in 3 cases,and patchy heterogeneous enhancement in 6 cases. In these 10 cases,7 had delayed enhancement. About the relative special CT finding in this study, 1 case had air meniscus sign, I0 cases had welt vessel signs, 3 cases had tail signs and 7 cases had halo signs. Conclusion： The characteristic findings of PSH in CT exam were air meniscus sign,welt vessel signs,tail signs and halo signs. The dynamic enhanced CT is helpful in diagnosis of PSH before operation.