Zhou pleural tumors can be a nodular or rugged change.
瘤周胸膜可呈结节状或凹凸不平的改变。
Conclusion (1) ct is the best guiding means in puncturing biopsy procedure for pleural lesions, especially for pleural tumors.
结论(1)CT导向是目前胸膜病变，尤其是肿瘤性病变穿刺活检的最佳引导手段。
Results:17(34%)of 50 cases of mediastinal tumors showed returned pleural line. 39(78%) of them were thymoma, teratoma, retrosternal thyroid, and neurogenic tumor.
结果：5 0例纵隔肿瘤其中17例（ 34% ）有胸膜返折线。胸腺瘤，畸胎瘤，胸骨后甲状腺及神经源性肿瘤占大多数39例（ 78% ）。
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