Fig. 3. The results of patients before and after treatment are compared, and the treatment is effective. Figure A shows the coronary position, and the lung window: a1 before treatment, a2 after one month of radiotherapy, and a3 after two cycles of chemotherapy. Figure B shows the coronal position, mediastinal window: b1 before treatment, b2 after one month of radiotherapy, b3 after two cycles of chemotherapy. Figure C shows the horizontal position, and the lung window: c1 before treatment, c2 after one month of radiotherapy, and c3 after two cycles of chemotherapy. Figure D shows the horizontal position, and the mediastinal window: d1 before treatment, d2 after one month of radiotherapy, and d3 after two cycles of chemotherapy.