Lung cancer starts in the cells of the lung .

 

Types of Lung Cancer :

There are two major types of lung cancer. Each type of lung cancer grows and spreads in different ways. Each type may be treated differently.

Non-small Cell Lung Cancer: this is the most common type of lung cancer. It usually spreads more slowly than some other lung cancers. There are three major types of non-small cell lung cancers: Squamous cell carcinoma, Adenocarcinoma and Large cell carcinoma

Small cell Lung Cancer: this is a less common type of lung cancer and it spreads faster than non-small-cell lung cancer. There are three major types of small cell lung cancers: Small cell carcinoma, Mixed small cell/large cell, Combined small cell carcinoma.

 

Risks of Lung Cancer :

 

*Tobacco Smoking.

*Asbestos

*Marijuana

*Recurring Inflammation by TB / Pneumonia increases risk of developing the lung cancer.

*Talcum Powder

*Personal and Family History

*Other Mineral Exposures

*Vitamin A Deficiency or Excess

*Air Pollution

Symptoms of Lung Cancer  :

Lung Cancer often does not produce symptoms in the early stages. Symptoms are a result of tumor growth, pressure and invasion on nearby structures and nerves, regional growths or metastasis.

If the cancer originated and grew in the bronchi and spread to nearby lymph nodes, the symptoms may include: coughing (when a tumor grew and blocked a passage), coughing up blood, chest pain, shortness of breath, pneumonia, hoarseness, difficulty in swallowing, swelling of the neck, face and upper extremities (caused by pressure on blood vessels), fatigue, loss of appetite and / or loss of weight

If the cancer originated and grew at the top of the lung, the symptoms may include: Pancoast’s syndrome (weakness and pain in the shoulder, arm and hand, caused by pressure on the nerves)

If the cancer has metastasized and traveled to other parts of the body, the symptoms may include:   Metastasis to brain: headache, weakness, behavioral changes, speech problems and memory lapses, Metastasis to other parts: pain, bone fractures, jaundice and blood clots. Additionally, lung tumors also may alter the production of hormones (called Paraneoplastic syndrome) that regulate body functions, causing: breast enlargement in males, bone and joint pain, Cushing’s syndrome (overproduction of corticosteroid hormones), Carcinoid syndrome (excess of serotonin hormone in the body), Hypercalcemia

 


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