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目的探讨CT在肺硬化性血管瘤中的诊断价值.方法回顾性分析20例经手术病理证实的肺硬化性血管瘤的CT表现.结果肿瘤发生于左肺9例,右肺11例.肿块均为单发,呈椭圆形、类圆形、不规则形、楔形或空洞样病灶.肿瘤最大径线0.7~10cm,CT表现为肺内边界清楚的孤立性结节或肿块,增强呈中重度持续强化,强化均匀或不均匀,4例肿块内见斑点状钙化,7例伴邻近胸膜增厚,3例伴肺门及纵隔淋巴结肿大.“空气新月征”5例,“贴边血管征”4例,“尾征”2例.结论肺硬化性血管瘤的CT表现具有一定特征性,掌握其典型CT特征有助于提高对该病的诊断及鉴别.“,”PURPOSE:To analyze diagnostic value of CT in pulmonary sclerosing hemangioma(PSH).METHODS:CT findings of 20 patients with surgicaly and pathologicaly proven PSH were analyzed retrospectively.RESULTS:There were 9 cases in left lung and 11 cases in right lung.The tumors showed oval,rounded,irregular, sphenoid or cavitary lesions.The maxsize of the tumors varied from 0.7 to 10cm.PSH manifested as a isolated nodule or mass of hypodensity on unenhanced CT image and progressively medium- severe enhancement on contrast-enhanced CT image.Enhanced CT images displayed homogeneous or heterogeneous density lesions with localized pleural thickening in 7 cases,portopulmonary and mediastinal lymph node enlargement in 3 cases,stippled calcification in 4 case,air crescent signs in 5 cases,welt blood vessel signs in 4 cases and tail sign in 2 cases.CONCLUSION:The CT features of PSH were specific.Understanding typical CT features of the tumors can improve diagnose accordance rate and accuracy of differential diagnosis for PSH.