艾滋病合并肺部卡波西肉瘤的CT表现

The CT findings of pulmonary Kaposi sarcoma in AIDS patients

目的:探讨艾滋病合并肺部卡波西肉瘤的CT表现及特征。方法:回顾性分析19例艾滋病合并肺部卡波西肉瘤患者的临床及胸部CT表现。结果:19例艾滋病合并肺部卡波西肉瘤患者中,发现双肺内多发结节影16例,多发斑片状实变影8例;其中肺内结节影均沿支气管血管束分布。双肺支气管血管束增厚9例,同时合并小叶间隔增厚。纵隔淋巴结肿大10例,9例发现少量胸水,均累及双侧胸腔。19例患者均未发现病变累及段以上支气管内壁。17例患者发现卡波西肉瘤时,体内CD4+T淋巴细胞计数低于100个/UL。结论:艾滋病合并肺部卡波西肉瘤患者胸部CT表现以双肺各叶多发结节影和斑片状实变影多见,肺内结节影多沿支气管血管束分布;斑片状实变影形态多不规则,类似火焰状为其特征性改变。

Objective：The purpose of this study was to characterize the Chest CT imaging findings of pulmonary Ka-posi＇s sarcoma in AIDS patients.Methods：A retrospective review of clinical features and CT findings of pulmonary involve-ments on 19 human AIDS patients complicated with pulmonary Kaposi＆#39;s sarcoma was conducted.Results：As for the 19 pa-tients,military nodular lesions were found in 16 patients,which were distributing along the bronchovascular bundles emana-ting from a perihilar origin.Patchy airspace consolidations were found in 8 patients.Other CT findings included thickened bronchovascular bundles and interlobular septa,lymphadenopathy in mediastinum,and bilateral minimal pleural effusion.No lesion found in the walls of segmental bronchi.CD4＋T cell count in 17 patients decreased below 100/UL when pulmonary Kaposi sarcomas appeared.Conclusion：The CT features of pulmonary Kaposi sarcoma in AIDS patients usually include mul-tiple nodular lesions distributing along the bronchovascular bundles which and patchy airspace consolidations,which can be considered as characteristic signs.