The patient is 88 years old male, diagnosis: central lung cancer, emphysema, asthma, the patient has severe emphysema, asthma, severe dyspnea with a little activity, and poor condition, radiofrequency ablation is the best choice for inoperable patients and patients with tumor recurrence, the tumor is close to the pulmonary artery, precise localization is needed, and the area of radiofrequency ablation should be larger than the tumor area. Considering that the effect of radiofrequency ablation of lung tumor is similar to that of lung lesion resection, Professor Liu Cheng performed radiofrequency ablation for this patient relying on precise positioning technology and achieved great success! (Figure 1 before ablation, Figure 2 during ablation, Figure 3 after ablation)