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目的探讨原发性胸腺癌的CT表现特征。方法回顾性分析经病理证实的4例原发性胸腺癌的临床资料、CT图像及病理结果,结合文献总结原发性胸腺癌的CT影像特征。结果 3例位于左前纵隔,1例位于右前纵隔。1例边缘呈蛋壳样钙化,边界尚清晰;3例边缘欠光整,与周围结构分界不清。4例中,3例行动态增强扫描,表现为肿块实性病灶呈明显不均匀性强化,其内低密度灶无明显强化。结论原发性胸腺癌CT表现具有一定的特征性,但确诊仍依赖病理及免疫组织化学检查。
Objective To investigate the CT features of primary thymoma. Methods The clinical data, CT images and pathological findings of 4 cases of primary thymoma confirmed by pathology were analyzed retrospectively. The CT images of primary thymoma were summarized. Results Three cases were located in the left mediastinum and one was located in the right anterior mediastinum. One case had eggshell-like calcification at the margin, and the border was clear. Of the 4 cases, 3 cases underwent dynamic contrast-enhanced scanning, which showed that the lumps of solid tumors showed obvious inhomogeneous enhancement, and no obvious enhancement of their low-density lesions. Conclusion The CT findings of primary thymoma have certain characteristics, but the diagnosis is still dependent on pathology and immunohistochemistry.