Which type of lung cancer is the most difficult to treat

summary

Lung cancer has a high mortality rate in all cancers. Experts say that different types of lung cancer have different survival time. Clinically, lung cancer can be divided into squamous cell carcinoma, undifferentiated carcinoma, adenocarcinoma and alveolar cell carcinoma. Each type of lung cancer has different survival and prognosis. Which type of lung cancer is the most difficult to treat?

Which type of lung cancer is the most difficult to treat

1. Squamous cell carcinoma has a high incidence rate of lung cancer, which accounts for about 50% of all lung cancer. The incidence rate of male is higher than that of women, and it often occurs in smokers. Squamous cell carcinoma is mainly of central type, which mainly originates from large bronchus. The tumor is highly differentiated and grows slowly. There is little distant metastasis in the early stage, and lymph node metastasis to distant organs in the late stage. Radiotherapy and chemotherapy can effectively treat squamous cell carcinoma.

Two: undifferentiated carcinoma is the most important type of lung cancer after second squamous cell carcinoma incidence rate. The central type and large bronchus were the main types. And there are several common clinical types: oat cell carcinoma, lung cancer. Undifferentiated carcinoma has a high degree of malignancy, early metastasis and tumor spread will appear, the development of the disease is relatively rapid, the prognosis is poor. General patients are more sensitive to chemoradiotherapy, if early detection and treatment, the prognosis is better.

3： Adenocarcinoma originated from bronchial mucosa epithelium, a few from mucinous gland of large bronchus. The incidence rate is lower than that of squamous cell carcinoma and undifferentiated carcinoma. The age of onset is younger and more common in women. Most adenocarcinoma originated from the smaller bronchus, which is peripheral lung cancer. In the early stage, there are no obvious clinical symptoms, and they are often found in chest X-ray examination. They are round or oval masses, which grow slowly, but sometimes hematogenous metastasis occurs in the early stage, and lymphatic metastasis occurs later.

matters needing attention

Lung cancer has become one of the major diseases that harm the society and human health. It has brought great pain and trouble to human beings. To reduce the incidence rate of lung cancer, we should know the basic types of lung cancer, two types of small cell lung cancer and non-small cell lung cancer. The most malignant lung cancer should be small cell lung cancer, accounting for about 20% of lung cancer, with high malignancy, short doubling time, early and extensive metastasis, sensitivity to chemotherapy and radiotherapy, high remission rate of initial treatment, but it is prone to secondary drug resistance and recurrence.