胸内Castleman病的CT、MRI表现(附6例分析)

目的:探讨胸内Castleman病的CT、MRI影像学表现。方法:回顾性分析经手术后病理证实的6例胸内Castle-man病的CT、MRI表现。结果:6例胸内Castleman病均为局限型;透明细胞型5例,浆细胞型1例。病灶位于中纵隔2例,其中1例同时累及前纵隔;肺门1例;后纵隔3例。CT表现为纵隔及肺门圆形或卵圆形软组织肿块,边缘清晰、光整伴分叶状1例;病灶密度均匀4例,不均匀2例,出现斑点状钙化2例,不规则坏死1例为浆细胞型;2例行MRI检查的表现T1WI像中纵隔病灶为稍高信号,右肺门为高信号,T2WI像为不均匀高信号;增强CT与MRI表现相似,病灶显著强化,CT值增加40HU左右,均匀强化4例,不均匀强化2例,在T1WI增强上呈均匀高信号。结论:Castleman病有一定的CT和MRI影像学特征,具有较高的诊断价值。

CT and MRI appearancs of thoracic castleman''''s disease(report of 6 cases)

Objective:To explore the CT and MRI appearances of thoracic castleman's disease.Methods:The appearances of CT and MRI of thoracic castleman's disease(n=6) confirmed by operative pathology were analyzed retrospectively.Results:2 lesions were in middle mediastinum,1 lesion in hilum pulmonis,3 lesions in posterior mediastinum.The thoracic castleman's disease(n=6) including hyaline-vascular type(n=5) and plasma cell type(n=1).On CT the lesions were round or oval soft-tissue mass,distinct and trim margin with smooth and uniform density(n=4),unhomogeneous density(n=2), spot calcification(n=2),abnormity necrosis(n=1).The lesions were slightly hyperintense in middle mediastinum,hyperintense in right hilum pulmonis on T1WI images;unhomogeneously hyperintense on T2WI.Homogeneous enhancement(n=4),unhomogeneous enhancement(n=2) and homogeneous hyperintense on T1WI were apparent during contrast on CT and MRI;all lesions were obvious enhancement and 40HU increased.Conclusion:The CT and MRI have important value in diagnosis of castleman's disease.