Types that account for one-third of lung cancer

Small cell lung cancer is a relatively common type of lung cancer. Among lung cancer patients, the proportion of patients with small cell lung cancer is as high as 20~25%. Although there has been a downward trend in recent years, we also need to understand some relevant information about small cell lung cancer in order to do a good job of prevention.

Small cell lung cancer is derived from the malignant transformation of Kulchitsky cells in the lung. The WHO divides it into three types: oat cell type, intermediate cell type and mixed cell type. The onset age is relatively young, more common in men, most patients have a history of smoking, generally originate from larger bronchi, and most are central lung cancer. The clinical characteristics are short tumor cell doubling time, rapid progression, often accompanied by endocrine abnormalities or carcinoid syndrome.

Compared with other types of lung cancer, small cell lung cancer has a shorter symptom period before diagnosis and a shorter survival period after diagnosis if the disease spreads to the same extent. Without treatment, the median survival of patients with small cell lung cancer from diagnosis is less than three months, and the two-year survival rate is less than 1%. Small cell lung cancer is a highly malignant tumor with a low degree of differentiation, fast growth, early lymphatic metastasis and invasion of blood vessels, and extensive metastasis to distant organs and tissues of the body through the blood vessels.

The treatment of small cell lung cancer should be based on the principle of comprehensive treatment. Systemic chemotherapy can be combined with radiotherapy and surgery. However, among all types of lung cancer, small cell lung cancer has the worst prognosis. If you want to know more, you can consult our experts online, and the experts will serve you wholeheartedly.

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