A Note on Lung Cancer and its Stages

[摘要] Lung cancer commonly known as lung carcinoma. It represents for around 98–99 percent of all lung malignancies, is a malignant lungtumour characterized by uncontrolled cell proliferation in lung tissues. Lung cancers are caused by the malignant transformation ofconnective tissues that emerge from mesenchyme cells, such as the uncommon sarcomas of the lung. Lung cancer can be caused bylymphomas and melanomas in rare cases.This uncontrolled development can eventually expand beyond the lung either by direct extension into the lymphatic circulation or byhaematogenous, blood-borne dissemination into neighboring tissue or other, more distant areas of the body. Primary lung cancers, alsoknown as carcinomas, are the most common tumours that begin in the lungs. Small Cell Lung Carcinoma (SCLC) and Non-Small Cell LungCancer (NSCLC) are the two most common types. Non-small cell lung cancer accounts for around 84 percent of lung cancer cases in theUnited States. Adenocarcinoma, squamous cell cancer, and large cell carcinoma are the three subtypes. Small cell lung cancer represents foraround 13% of lung cancer cases in the United States. This kind of lung cancer grows faster than non-small cell lung cancer.

[学科分类] 药理学