Patient: Description (onset time, main symptoms, hospital visited, etc.): I suddenly had a tickling throat and cough with white sputum at night 4-5 days ago, with occasional tracheal sound, which affected my rest, I went to take an X-ray the next day, and the doctor said it was pleurisy, I did a CT examination 2 days later, and the film showed a 7MM nodule on the back of my right lung near the pleura, I went to Zhengzhou Cancer Hospital and People’s Hospital again, some said let immediately I went to Zhengzhou Cancer Hospital and People’s Hospital, some of them said that I should be hospitalized immediately to remove it, some said to observe and review it. The X-ray film I took at the end of December last year was shown to the doctor at the Provincial People’s Hospital, and the doctor said it was shown on the film at that time. I took antibiotics and antivirals at home for 5 days, my symptoms were mild and I could rest at night. I saw in the provincial hospital, a doctor said I found early, asked for surgery as soon as possible, said first minimally invasive resection disease examination, such as not open cut lung, said afraid of delay, while another doctor let a month to do CT comparison, to see whether it is enlarged before deciding, and said too small minimally invasive not good to find. 1. Is my lung cancer? 2. Should I be hospitalized immediately to have it removed, and can it be removed by minimally invasive means? 3. Is it a delay in treatment if I have to review it in a month? Expert doctor: It is difficult to diagnose small nodules in the lung by CT (unless there are typical signs). Treatment: 1. Image-guided percutaneous puncture biopsy for clear diagnosis, especially for those who have difficulty in diagnosis and suspect malignant tendency. (Advantages: percutaneous puncture biopsy has an accuracy that cannot be replaced by other examination methods, diagnosis is the basis of treatment, puncture biopsy after a clear diagnosis of how to treat how to treat, both symptomatic and will not delay treatment. Disadvantages: percutaneous puncture biopsy is an invasive test, with a certain degree of risk, equipment and physician level requirements); 2, direct surgery or thoracoscopic resection, for high suspicion of malignancy or regular follow-up with enlargement (advantages: regardless of benign or malignant cut the matter. Disadvantages: if it is an inflammatory lesion, there is no need for surgery, so it is a waste of time); 3, regular review, CT review every 3-6 months, suitable for those who consider the possibility of benign imaging (advantages: no trauma, little risk. Disadvantages: the lesion is not clear, the psychological burden is heavy, and there is the possibility of disease progression and delayed disease treatment).