PMC9978590_01
Timeline of the detection and therapeutic process.
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The timeline of the diagnostic and therapeutic process is shown in  Figure 1 .
Chest CT results. The red arrow points to the lung tumor. (A) Chest CT results on 13 December 2017 (before treatment). The maximum cross-sectional area of the space-occupying lesion in the upper lobe of the left lung was 7.3 cm x 5.5 cm. Multiple metastatic lymph nodes were found in the mediastinum and neck. There was pleural effusion in the left chest. (B) Chest CT results on 27 May 2019 (after treatment). The maximum cross-sectional area of the space-occupying lesion was 9 mm x 4 mm. Multiple small lymph nodes were found in the mediastinum and neck.
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The chest CT results before and after treatment are shown in  Figure 2 .