【摘要】 目的:通过探讨易误诊的前纵隔淋巴瘤临床及影像特点,以提高其诊断的准确性。方法:回顾15例经穿刺或手术病理证实的前纵隔淋巴瘤(6例术前误诊),分析其临床、胸片表现、64排螺旋CT影像特点及易误诊征象。全部患者均行胸部正侧位、CT平扫加动脉期及静脉期增强扫描,并行冠状位及矢状位MPR重建。结果:(1)前纵隔淋巴瘤患者发病年龄均较轻(平均28岁)。(2)胸片对前纵隔淋巴瘤的定位尚准确,定性诊断价值不大。(3)CT表现中,不规则肿块内部出现较大范围的液化区是造成前纵隔淋巴瘤误诊的主要原因,其中环形强化的类圆形囊变区尤为特别。结论:综合临床及影像特点,可提高易误诊的前纵隔淋巴瘤诊断的准确性。更多还原

【Abstract】 Objective To improve the diagnostic accuracy by investigating the clinical and imaging features of the anterior mediastinal lymphoma misdiagnosed.Methods Fifteen cases of anterior mediastinal lymphoma were reviewd(among them 6 were misdiagnosed),pathologically confirmed by succedent puncture biopsy or surgery,the clinical,chest X-ray performance,64-slice spiral CT imaging features and misdiagnosed signs were analyzed.All patients had posteroanterior and lateral chest X-ray,CT unenhanced scan,enhanced scan in arterial and venous phase,coronal and sagittal MPR reconstruction.Results(1)The incidence of anterior mediastinal lymphoma was in younger patients(average age 28);(2)Chest X-ray on the anterior mediastinal lymphoma had still accurate localization and little qualitation value.(3)Among CT manifestations,the main reason of misdiagnosed anterior mediastinal lymphoma was a larger range of liquefied area within irregular mass,in which,the ring enhanced of round cystic region was characteristic.Conclusion Combining the clinical and imaging features,we can improve diagnostic accuracy of misdiagnosed anterior mediastinal lymphoma.更多还原