Clinical Lung Cancer
Clinical Lung Cancer
Clinical Lung Cancer (pronounced as klin-i-kəl ləŋ kæn-sər) is a type of cancer that originates in the lungs. It is one of the most common and deadly forms of cancer worldwide.
Etymology
The term "Clinical" is derived from the Greek word "klinikos", which means "bed", referring to the observation and treatment of patients. "Lung" comes from the Old English "lungen", and "Cancer" is derived from the Latin "cancer", meaning "crab", due to the crab-like spread of the disease in the body.
Types of Lung Cancer
There are two main types of lung cancer: Non-Small Cell Lung Cancer (NSCLC) and Small Cell Lung Cancer (SCLC). NSCLC is the most common type, accounting for about 85% of all cases, while SCLC accounts for the remaining 15%.
Non-Small Cell Lung Cancer
Non-Small Cell Lung Cancer is further divided into three main subtypes: Adenocarcinoma, Squamous Cell Carcinoma, and Large Cell Carcinoma.
Small Cell Lung Cancer
Small Cell Lung Cancer is less common but more aggressive and spreads faster than NSCLC. It is closely associated with tobacco smoking.
Causes and Risk Factors
The primary cause of lung cancer is exposure to tobacco smoke, either directly or through secondhand smoke. Other risk factors include exposure to radon gas, asbestos, certain air pollutants, and genetic factors.
Symptoms
Common symptoms of lung cancer include persistent cough, shortness of breath, chest pain, hoarseness, weight loss, and fatigue.
Diagnosis
Diagnosis of lung cancer typically involves a combination of imaging tests, biopsy, and laboratory tests.
Treatment
Treatment options for lung cancer depend on the type, stage, and the patient's overall health. They may include surgery, radiation therapy, chemotherapy, targeted therapy, or a combination of these.
Prognosis
The prognosis for lung cancer varies widely depending on the type and stage at diagnosis. Early detection and treatment can significantly improve survival rates.
External links
- Medical encyclopedia article on Clinical Lung Cancer
- Wikipedia's article - Clinical Lung Cancer
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