Im J G, Kim W H, Han M C, Han Y M, Chung J W, Ahn J M, Do Y S
Department of Radiology, Seoul National University Hospital, Korea.
J Comput Assist Tomogr. 1994 Jan-Feb;18(1):34-8. doi: 10.1097/00004728-199401000-00007.
Sclerosing hemangioma is a rare pulmonary tumor. This article describes CT features of the tumor on the basis of CT-pathology correlation.
The CT features of eight patients with sclerosing hemangioma of the lung were studied retrospectively and were correlated with the pathologic findings of the resected specimens. All eight patients had an incidental lung mass found on chest radiographs. Seven patients were female. Contrast enhancement of the masses was assessed visually by two radiologists independently, and the density was measured before and after contrast enhancement by using a standard cursor in three patients.
On CT, sclerosing hemangiomas appeared as well defined juxtapleural masses in all cases. The tumors enhanced by visual criteria in all but one patient with the smallest mass. The CT density of the enhancing mass ranged from 96 to 157 HU. Three patients had calcification and two had well defined areas of low attenuation. On CT-pathology correlation, the higher, iso-, and lower attenuation areas corresponded with angiomatous, solid and sclerotic, and cystic areas, respectively.
A well defined juxtapleural mass with marked contrast enhancement coupled in select cases with foci of sharply marginated areas of low attenuation and calcification are characteristic CT findings of sclerosing hemangioma and should suggest this diagnosis especially in women with these findings.
硬化性血管瘤是一种罕见的肺部肿瘤。本文基于CT与病理的相关性描述该肿瘤的CT特征。
回顾性研究8例肺硬化性血管瘤患者的CT特征，并与切除标本的病理结果进行对照。所有8例患者均在胸部X线片上偶然发现肺部肿块。7例为女性。由两名放射科医生独立对肿块的对比增强进行视觉评估，3例患者使用标准光标在对比增强前后测量密度。
CT上，所有病例的硬化性血管瘤均表现为边界清晰的胸膜下肿块。除1例最小肿块的患者外，所有肿瘤在视觉标准下均有强化。强化肿块的CT密度范围为96至157HU。3例有钙化，2例有边界清晰的低密度区。在CT与病理的相关性方面，较高、等密度和较低密度区分别对应血管瘤样、实性和硬化性以及囊性区域。
边界清晰的胸膜下肿块伴明显对比增强，在部分病例中伴有边界清晰的低密度区和钙化灶，是硬化性血管瘤的特征性CT表现，尤其是在有这些表现的女性中应提示该诊断。
