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纵隔淋巴管瘤的CT及MRI表现 被引量:5

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摘要 目的探讨纵隔淋巴管瘤的CT及MRI表现,以提高对本病的认识。方法回顾性分析经手术病理证实的7例纵隔淋巴管瘤的CT及MRI表现,7例均行CT平扫,其中4例行增强CT扫描,2例行MRI扫描。结果 7例纵隔淋巴管瘤均表现为纵隔肿块。其中右前上纵隔3例,右后上纵隔2例,右前下纵隔心包旁1例,左前上纵隔1例。7例中4例肿块呈类圆形或分叶状,边界较清楚;2例肿块沿纵隔血管间隙弥漫生长,边界不清;1例肿块向椎管内延伸,呈哑铃型。肿块直径5.0~11.0cm,平均7.2cm。CT平扫肿块密度均匀或不均匀,平均CT值23HU;增强扫描4例中1例肿块内部呈小片状或点、条样强化,3例无强化表现。2例行MRI检查,病灶均表现为长T1、长T2信号的囊性肿物,增强后无强化表现,其中1例信号欠均匀,与周围结构分界欠清。结论纵隔淋巴管瘤的CT及MRI表现有一定特征性,多表现为前上纵隔的囊性肿块,可沿纵隔间隙弥漫生长,增强扫描多无强化。CT增强扫描及MRI扫描有助于纵隔淋巴管瘤的诊断。
出处 《中华临床医师杂志(电子版)》 CAS 2012年第6期164-165,共2页 Chinese Journal of Clinicians(Electronic Edition)
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