例1 男,33岁。主因右胸不适,咳嗽,痰带血丝1个月就诊。胸片示右肺中叶3×4cm圆形肿物,密度均匀,边界清楚,诊为结核球。抗痨治疗2年无明显疗效,咳嗽、咯血加重伴胸痛。第一次拍片2年8个月后复查胸片,肿物增大约10×10cm,边缘清,密度不均,其中似有钙化。查体:浅表淋巴结不大,右第3 Example 1 Male, 33 years old. Mainly due to right chest discomfort, cough, sputum with bloodshot 1 month. The chest radiograph showed a 3×4cm round mass in the middle of the right lung, with a uniform density and a clear boundary. It was diagnosed as a tuberculosis ball. Anti-tuberculosis treatment for 2 years no significant effect, cough, hemoptysis aggravated with chest pain. After the first film was taken 2 years and 8 months later, the chest radiograph was reviewed. The mass was increased by about 10×10 cm, the margin was clear, and the density was uneven. There was calcification. Physical examination: superficial lymph nodes are small, right third