肺硬化性血管瘤的CT特征及病理对照分析

Comparative analysis of pathology and CT features of pulmonary sclerosing hemangioma

目的探讨肺硬化性血管瘤（PSH）的cT特征，提高对本病诊断的准确性。方法回顾性分析22例经手术、病理证实的PSH的cT特征，所有的病例均行cT平扫和动态增强扫描。结果病灶位于右肺者12例，左肺10例，4例位于肺门区，其余均位于肺外围；22例病灶呈圆形或椭圆形，14例病灶密度均匀（14／22，占63．63％），其中2例出现轻度分叶（2／22，占9．09％）；8例病灶密度欠均匀（8／22，占36．36％），边缘可见点状钙化，1例可见“空气新月征”。增强以后均有比较明显的强化，密度值达90～148HU。病灶与周围血管关系密切。结论cT对于肺硬化性血管瘤的诊断有一定价值，增强扫描能更好的显示病变特点，对该病的诊断及鉴别诊断有重要意义。

Objective To evaluate CT features of pulmonary sclerosing hemangioma （PSH） , and improve the CT diagnostic ac- curacy of the disease. Methods CT features of PSH confirmed by operation and pathology were retrospectively analyzed. Con- ventional scan and contrast-enhanced scan were performed in all the cases. Results 12 lesions were in right lung, while 10 were in left, 4 lesions were located in hilum of lung. 14 lesions of the 22 cases showed a uniform density （ 14/22, 63.63% ） , two of which had slight lobulated shape （ 2/22, 9.09% ） ; 8 cases were not uniform in density and showed punctate calcification （ 8/ 22, 36.36% ） , one of which presented with air crescent sign; All the lesions enhanced obviously after contrast-enhanced scan and density was up to 90 to 148HU . The close relation between surrounding vessel and the lesions were found generally. Con- clusion The CT scanning is helpful for the diagnosis of PSH. Enhanced CT is valuable in diagnosis and better shows lesion of PSH.