In the increasingly busy life under pressure, many friends will appear shoulder arm pain from time to time, very often, this pain will be thought to be cold or tired caused by, but, a long time body pain, really so simple? A year and a half ago, 54-year-old Mr. Huang, who lives in Hebei, suddenly felt the pain in his right shoulder, and involved the entire right side of the chest and back and the right upper limb, began to think that it was cold, wind, they bought their own topical ointment and with the fire cupping treatment at the time of relief, but not lasting; 5 months later, the pain symptoms are still not relieved, but the situation is getting worse, and even the right arm can not be exerted, went to the local hospital! He went to the local hospital for examination and was considered to have muscle atrophy of the right upper limb, but did not receive any treatment. After 2 months of being informed of muscle atrophy, Mr. Huang inexplicably developed hoarse voice and other symptoms, and once again consulted with the local hospital, so that he could not believe how, after CT examination, found that the right side of his lungs soft tissue mass shadow, pathology results: lung squamous carcinoma! It turned out that the cause of Mr. Huang’s right shoulder pain for more than half a year was the metastasis of lung cancer to his right shoulder blade. At the end of last year, Mr. Huang started to receive chemotherapy, but at the end of the second cycle of chemotherapy, he suddenly developed hemoptysis and other conditions, accompanied by fever, up to 38.6 ℃, local hospitals to cough expectorant, antispasmodic and asthma, hemostasis and anti-infection and other symptomatic treatments, the above symptoms slightly improved, but a week later, coughing, sputum and wheezing aggravated again, holding gasping for a week is especially obvious, can not lie down for further treatment, come to Beijing and For further treatment, he came to Beijing and was transferred to our hospital. After admission, a transoral scleroscope was performed under general anesthesia in the tracheoscopy room, and a dark red mass was found in the middle of the trachea, blocking 95% of the lumen, with a lot of old bloody secretions on the surface of the mass. The mass was extracted by laparoscopic device, scleroscopic spatula, carbon dioxide freezing, and sent for pathologic examination. After treatment, the mass was completely removed and the lumen was clear. It turned out that Mr. Huang’s breathlessness was caused by the metastasis of lung cancer to the trachea, which would be life-threatening at any time if not treated in time. Lung cancer is a common malignant tumor, which often leads to some symptoms in patients’ body. Generally speaking, the early symptoms of lung cancer include cough, hemoptysis, chest pain, shortness of breath and other respiratory system manifestations. However, clinically, it is found that a considerable number of lung cancer patients do not show lung symptoms at the beginning but extra-lung symptoms, such as unexplained low back pain, upper limb pain, headache, vomiting, hoarseness, etc., which are easy to be misdiagnosed as rheumatism pain, frozen shoulder, and so on, and must be alerted.