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Lung Cancer Diagnosis Guide

What is the diagnosis of lung cancer ? Lung cancer doctors use a variety of diagnostic procedures and lung cancer tests to diagnose lung cancer. Some of lung cancer diagnosis (diagnóstico de cáncer de pulmón, La diagnosi di cancro al polmone, lungenkrebs diagnose, diagnóstico de cáncer de pulmón) are :

Physical and history examination

The history and physical examination may reveal the presence of symptoms and signs that, with suspected lung cancer. In addition, to inquire into the causes and risk factors for cancer such as smoking, doctors can detect signs of respiratory distress, airway obstruction or lung infection. Cyanosis, a bluish color of the skin and mucous membranes due to lack of oxygen in the blood, suggesting compromise of lung function. In addition, changes in the tissues of the nail, known as clubs, can also indicate lung disease.

Chest X-ray

Using Chest X-Ray is the most common first diagnostic step, when new lung cancer symptoms are present. Chest X-ray procedure often includes a view from the back of the front of the chest as well as the view from the outside. Like any X-ray procedure, chest X-rays expose patients below the minimum amount of radiation. In the chest X-rays can detect suspicious areas in the lungs, but can not determine if these areas are cancerous. In particular, calcified nodules in the lungs or benign tumors called hamartomas can be identified by chest radiography and simulate a lung cancer.

CT-Scan (computed tomography scan, or computed tomography)

Computed Tomography Scan, better know as CT-Scan can be performed in the chest, abdomen and / or to study the brains of primary and metastatic tumors. The CT scan may be ordered when a chest X-rays showed no abnormalities or does not provide sufficient information or the location of the tumor. CT X-ray procedures is to combine several images using a computer to produce cross-section view of the body. Photos taken large donut-shaped X-ray machine at various angles around the body. One advantage of CT is more sensitive than standard chest x-ray ray in detecting lung nodules. Sometimes intravenous contrast agent is given before the procedure helps to identify the bodies and their positions. CT exposes the patient to a minimal amount of radiation. The most common side effect is an adverse reaction to contrast material intravenously, which can be given before the procedure. There may be a result of itching, a rash, which usually disappear fairly quickly. Severe anaphylactic reactions (life-threatening allergic reactions with shortness of breath), in contrast to the material are rare. Abdominal CT scan can detect liver metastases or adrenal glands, and computed tomography of the head may be required to identify the presence and extent of metastatic brain cancer.

A technique called low-dose spiral CT (computed tomography or spiral)

CT Spiral, or computed tomography spiral is sometimes used for screening of lung cancer. This procedure requires a special type of scanner and shown to be an effective tool to identify lung cancer in smokers and former smokers. However, there has not been demonstrated that the use of this method actually saves lives and reduces the risk of death from lung cancer. Increased sensitivity of this method is actually one of the sources of its weaknesses, as it is easy nodules require further evaluation will be considered in approximately 20% of people with this technique. Nodules identified low-dose spiral transformer test, 90% not cancerous, but require up to two years of expensive and often difficult monitoring and verification. Trials conducted in order to determine more precisely the utility of spiral CT screening for lung cancer.

Magnetic resonance imaging (MRI)

Using MRI may be appropriate if the precise details on the whereabouts of the tumor is not necessary. Appliances Magnetic Resonance Imaging (MRI) uses magnetism, radio waves and a computer to produce images of body structures. Like CT, the patient is in bed furniture, which is inserted into the MRI. There are no known side effects of MRI, and no exposure. And the resolution of the image produced by MRI in detail and can detect small changes in the structure within the body. Persons with pacemakers, metal implants, artificial heart valves and other structures surgically implanted can not be scanned with MRI because of the risk that the magnet may move the metal parts of these structures.

Positron Emission Tomography (PET)

PET, or positron emission tomography is a specialized imaging technique that uses radioactive drugs short-term three-dimensional color images of these substances in the tissues in the body. Although CT and MRI to examine the anatomical structures and measure the metabolic activity of PET and functioning of tissues. PET can determine if the tumor tissue is actively growing and can help determine the type of tumor cells determined. In PET, the patient receives an average cut of radioactive drugs and about the amount of radiation in two chest X-ray. Drug discharges particles called positrons from wherever they are accepted and used in the body. As the positrons encounter electrons in the body, the reaction of gamma ray production occurs. The scanner records these gamma rays and map the area where radioactive drugs. For example, the combination of glucose (a common source of energy in the body) with radioactive materials will be displayed quickly when glucose is used, for example, the growing tumor.

Thoracentesis

Why thoracentesis can diagnose lung cancer? Sometimes lung cancer involving the lining of the lung tissue (pleura) and lead to accumulation of fluid in the space between the lungs and thorax (called pleural effusion). The desire of the fluid sample with a fine needle (thoracentesis) can detect cancer cells and to establish the diagnosis. As the needle biopsy, a small risk of pneumothorax associated with this procedure.

Bronchoscopy
Examination of bronchoscopy of the airways (Airways viewing through a thin fiber optic probe is inserted through the nose or mouth), can identify areas of tumor, which may be sampling ( biopsy) for diagnosis by the pathologist. A tumor in the central regions of mild or arising in connection with the large airways is available for sampling using this technique. Bronchoscopy can be performed with the fiber, rigid or flexible-optic bronchoscope and can be done in the office that day bronchoscopy suite, operating room or living room. The procedure can be uncomfortable and requires sedation or anesthesia. Although bronchoscopy is relatively secure, it must be done by lung specialists (pulmonologist or surgeon) with experience in this procedure. When the tumor is visualized and adequately sampled, accurate diagnosis of cancer, as a rule, is possible. Some patients may cough up blood, dark brown for a day or two after the procedure. The most serious complications, but rarely include more bleeding, reduced blood oxygen, and cardiac arrhythmia, and complications of sedation and anesthesia.

Sputum cytology

What is the sputum cytology? The lung-cancer diagnosis always requires confirmation of malignant cells pathologist, even when symptoms and X-ray studies with suspected lung cancer. The easiest way to establish the diagnosis of sputum examination under a microscope. If the tumor is located in the center and into the respiratory tract, this procedure is known as the examination of sputum cytology, may allow visualization of the tumor cells for diagnosis. This is the biggest risk diagnostic procedure for free and cheap material, but its value is limited because tumor cells can not always be present in sputum, even if cancer is present. Also, sometimes benign cells undergo changes in response to inflammation or trauma, which makes them look like cancer cells.

The Bone Scan

The bone scan is used to create images of bones on a film or computer screen. Doctors may order a bone scan to determine the lung cancer metastasis to bone. In the analysis of bones, a small amount of radioactive material is injected into the blood and accumulates in bones, especially in abnormal areas, such as those involved in the metastatic tumors. Radioactive material detected by the scanner and the image of the bones is recorded on special film for permanent display.

The needle biopsies

Fine needle aspiration (FNA) through the skin, most commonly performed with X-ray images for guidance, can be useful in extracting the cells for diagnosis of tumors of the lymph in the lungs. Needle biopsy is particularly useful for peripheral lung tumor in the lungs and is not accessible for sampling by bronchoscopy. A small amount of local anesthetic for the installation of a thin needle through the chest wall in the anomalous region in the lungs. The cells were sucked into the syringe and examined under the microscope of the tumor cells. This procedure is usually necessary when the tissue in the affected area is an adequate sample, but in some cases, the district or outside the field can easily be confused with the sample. Small risk (3% -5%) of air leaks in the lungs (called pneumothorax, which can be easily treated) accompanies the procedure.

The major surgical procedures

If none of these methods provides methods of diagnosis, surgery should be used to obtain tumor tissue for diagnosis. These may include mediastinoscopy (examination of the chest cavity between the lungs through a tube inserted into a surgical biopsy of tumor masses or lymph nodes that may contain metastases) or thoracotomy (surgical opening of the chest wall to remove or biopsy). At thoracotomy, is a rare opportunity to completely remove the lung, and both mediastinoscopy and thoracotomy entails risks of major surgical procedures (for complications such as bleeding, infection, and risks associated with anesthesia and drugs). These procedures are performed in the operating room and the patient should be hospitalized.

Blood tests

Although regular blood tests alone can not diagnose lung cancer can be identified biochemical and metabolic disorders in the body that accompany cancer. For example, elevated levels of calcium or alkaline phosphatase enzyme may accompany cancer, which is a bone metastasis. In addition, elevated levels of certain enzymes normally present in liver cells, including alanine aminotransferase (ALT or SGPT) and aspartate aminotransferase (AST or SGOT), signal liver damage, possibly due to the presence of metastases.

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The Most Frequent Cirrhosis Causes

There are some causes of cirrhosis, such as alcohol, non-alcoholic fatty liver disease (NAFLD), cryptogenic cirrhosis, chronic viral hepatitis, Inherited disorders, primary biliary cirrhosis, primary sclerosing cholangitis, autoimmune hepatitis, biliary atresia, and cardiac chronic heart failure as cirrhosis causes problems.

• Alcohol cause hepatic cirrhosis

Alcohol is a very common cause of cirrhosis, especially in the western world. The development of cirrhosis depends on the amount and regularity of alcohol consumption. Chronic high levels of alcohol consumption for liver cell damage. Thirty percent of people drinking daily for at least eight to sixteen ounces of hard liquor or the equivalent of fifteen or more years will develop cirrhosis. Alcohol causes a range of diseases of the liver to be simple and uncomplicated fatty liver (steatosis), to more severe fatty liver with inflammation (nonalcoholic steatohepatitis or hepatitis), cirrhosis.

• Non-alcoholic Fatty Liver Disease (NAFLD)

NAFLD, better known as Non-Alcoholic Fatty Liver Disease refers to a broad spectrum of liver diseases such as alcoholic liver disease, ranging from simple steatosis to non-alcoholic steato-hepatitis (NASH) to cirrhosis. All stages of NAFLD have in common the accumulation of fat in liver cells. The term is used because NAFLD nonalcoholic occurs in people who do not consume excessive amounts of alcohol, however, in many respects, the microscopic image of non-alcoholic fatty liver is similar to what can be seen in liver disease caused by excessive alcohol consumption. Is NAFLD associated with a condition called insulin resistance, which in turn is associated with metabolic syndrome and type 2 diabetes mellitus. Obesity is a major cause of insulin resistance, metabolic syndrome, type 2 diabetes. NAFLD is the most common liver disease in the United States and is responsible for 24% of all liver diseases. In fact, the number of livers that are transplanted from non-alcoholic fatty liver, cirrhosis is related to the increase. The public health administrators that the current epidemic of obesity dramatically increases the development of nonalcoholic fatty liver and cirrhosis in the population.

• Cryptogenic cirrhosis (cirrhosis due to unidentified causes)

Cirrhosis due to unidentified causes, better known as Cryptogenic-Cirrhosis is a common reason for liver transplantation. It’s called cryptogenic cirrhosis because for years doctors have been unable to explain why a proportion of patients with cirrhosis developed. Doctors now believe that cryptogenic cirrhosis due to NASH (nonalcoholic steatohepatitis) caused by long-standing obesity, type 2 diabetes and insulin resistance. The fat in the liver of patients with NASH is estimated to disappear with the onset of cirrhosis, and this makes it difficult for physicians to establish the link between NASH and cryptogenic cirrhosis long. An important clue leading to NASH cryptogenic cirrhosis is the discovery of a large number of Nash in the new liver of patients undergoing liver transplantation in cryptogenic cirrhosis. Finally, a French study suggests that patients with NASH have a similar risk of developing cirrhosis patients with long-term infection with hepatitis C. (See below). However, it is expected that progression to cirrhosis from NASH to be slow and the diagnosis of cirrhosis is usually performed in patients in the sixties.

• Chronic Viral Hepatitis

Viral hepatitis chronic is a condition where chronic hepatitis B or chronic hepatitis C affects the liver for years. Most patients with viral hepatitis develop chronic hepatitis and cirrhosis. For example, most patients infected with hepatitis A recover completely within a few weeks without developing chronic infection. However, some patients infected with hepatitis B and most patients infected with hepatitis C develop chronic hepatitis, which in turn leads to progressive liver disease leading to cirrhosis and sometimes liver cancer.

• Inherited (genetic) disorders

Inherited genetic disorders that cause the accumulation of toxic substances in the liver, leading to tissue damage and cirrhosis. Examples include the abnormal accumulation of iron (hemochromatosis) or copper (Wilson’s disease). In hemochromatosis, patients inherit a tendency to absorb too much iron from food. Over time, iron accumulation in various organs in the body causes cirrhosis, arthritis, heart muscle damage leading to heart failure, and testicular dysfunction causing loss of sexual appetite. Treatment aims to prevent organ damage from the removal of iron in the body by bleeding (blood removal). In Wilson’s disease, is an inherited abnormality in one of the proteins that control copper in the body. Over time, copper accumulates in the liver, eyes and brain. Cirrhosis, tremor, psychiatric disorders and other neurological disorders occur if the condition is not treated quickly. Treatment with oral medication that increases the amount of copper from the body in urine.

• Primary biliary cirrhosis (PBC)

PBC, better known as Primary Biliary Cirrhosis is a liver disease caused by abnormal immune system that is predominantly female. Abnormal immunity in PBC causes chronic inflammation and destruction of small bile ducts in the liver. The bile ducts are the passages in the liver, bile travels to the intestine. Bile is a liquid produced by the liver that contains substances necessary for digestion and absorption of fat in the intestine, and other compounds that are waste products such as bilirubin, a pigment. (Bilirubin is produced by the breakdown of hemoglobin in red blood cells.). Along with the gallbladder, bile ducts form the biliary tract. In the PBC, the destruction of small bile duct blocks the normal flow of bile into the intestine. As the inflammation continues to destroy more of the bile ducts, also extends to destroy liver cells nearby. That the destruction of hepatocytes of products, the scar tissue (fibrosis) forms and propagates in the areas of destruction. The combined effects of ongoing inflammation, scarring, and the toxic effects of waste accumulation leads to cirrhosis.

• Primary sclerosing cholangitis (PSC)

PSC, better known as Primary Sclerosing Cholangitis is a rare disease that occurs frequently in patients with ulcerative colitis. In the PSC, the large bile ducts outside the liver become inflamed, narrowed and blocked. Outflow obstruction of the bile duct in biliary tract infections and jaundice, and eventually causes cirrhosis. In some patients, bile duct injury (usually after surgery) can also cause obstruction and cirrhosis of the liver.

• Autoimmune hepatitis

Autoimmune hepatitis is a liver disease caused by abnormal immune system that occurs most often in women. The abnormal immune activity in autoimmune hepatitis resulting in inflammation and progressive destruction of liver cells (hepatocytes), which eventually leads to cirrhosis.

• Babies can be born without bile ducts (biliary atresia)

Biliary atresia, also known as infant can be born without bile ducts and eventually develop cirrhosis. Other babies are born without enzyme vital for control of sugar that leads to the accumulation of sugars and cirrhosis. On rare occasions, the absence of a specific enzyme can cause cirrhosis and scarring of the lungs (alpha-1 antitrypsin deficiency).

• Other less common causes of cirrhosis include unusual reactions to certain drugs and exposure to toxins, and chronic heart failure (cardiac cirrhosis)

In some parts of the world (especially North Africa), infection of the liver parasites (schistosomiasis) is the most common cause of liver disease and cirrhosis.

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Lung Cancer Symptoms and Signs

What are the lung cancer signs and lung cancer symptoms ? The symptoms of lung cancer vary widely depending on the location and extent of the tumor. Warning signs of lung cancer are not always present or readily identifiable. A person with lung cancer May of the following types of symptoms:

• No symptoms

It’s up to 25% of people who develop lung cancer, the cancer is discovered at a routine chest X-ray or CT scan as a solitary small mass sometimes called the currency of an injury, given as two dimensions X – ray or CT scan, the tumor-round as a coin. These patients often report only small masses have no symptoms when the cancer is discovered.

• The symptoms associated with cancer

Tumor growth and invasion of lung tissue and surrounding tissues can cause breathing, causing symptoms such as cough, dyspnea, wheezing, chest pain and coughing up blood (hemoptysis). If the cancer has invaded nerves, for example, can cause pain in the shoulder on the outside of the arm (called Pancoast’s Syndrome) or paralysis of the vocal cords leading to hoarseness. Invasion of the esophagus may cause difficulty in swallowing (dysphagia). If an airway is obstructed large, the collapse of part of the lung may occur and cause infections (abscesses, pneumonia) in the blocked area.

• Symptoms related to metastasis

Lung cancer that has spread to the bones may produce excruciating pain in areas of bone involvement. Cancer that has spread to the brain can cause a range of neurological symptoms may include blurred vision, headaches, seizures or stroke symptoms as weakness or numbness in parts of the body.

• Paraneoplastic symptoms

Lung cancers are often accompanied by symptoms resulting from the production of the hormone-like substances by tumor cells. These paraneoplastic syndromes occur most often with SCLC in may, but should be viewed with any type of tumor. A common paraneoplastic syndrome associated with SCLC is the production of a hormone called adrenocorticotropic hormone (ACTH) by the cancer cells, resulting in the hypersecretion of cortisol, a hormone of the adrenal glands (Cushing’s syndrome). Most common paraneoplastic syndrome with NSCLC is the production of a substance similar to parathyroid hormone, which causes high calcium levels in the blood.

• No specific symptoms

No specific symptoms seen with many cancers, including lung cancer, including weight loss, weakness and fatigue. Psychological symptoms such as depression and mood swings are also common.
When you visit a doctor or physician medical ?

He should consult a health professional if symptoms he or she develops associated with lung cancer, especially if they
- A persistent cough onset or worsening of existing chronic cough
- The blood in the sputum
- Persistent bronchitis or repeated respiratory infections
- Chest pain
- Unexplained weight loss and fatigue, and also..
- Breathing difficulties such as shortness of breath or wheezing.

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Causes of Lung Cancer Information

Maybe some people ask, what causes of lung cancer?  There are many lung cancer causes, such as smoking or to be passive smokers, asbestos fibers, because radon, or the family predisposition, lung disease from family, air pollution or history of the lung cancer family can make lung cancer cause (lungenkrebs verursacht, provoque le cancer du poumon, provoca il cancro ai polmoni, causa cáncer de pulmón).

Smoking

The incidence of lung cancer is closely linked to smoking, with approximately 90% of lung cancers caused by snuff. The risk of lung cancer increases with the number of cigarettes smoked over time, doctors refer to this risk in terms of pack-years history of smoking (number of packs of cigarettes smoked per day multiplied by the number of years). For example, a person who has smoked two packs of cigarettes a day for 10 years has a pack of 20, smoking history year. Although the risk of lung cancer increases even with a 10 pack year history of smoking, those who have stories 30-lot-of one year or more are regarded as having the greatest risk of developing lung cancer. Among people who smoke two or more packs of cigarettes a day, seven people who die from lung cancer.

Pipe and cigar smoking can also cause lung cancer, but the risk is not as high as with cigarette smoking. As a person who smokes a pack of cigarettes per day had a risk of developing lung cancer is 25 times higher than a non-smoker, pipe smokers and cigar has a risk of lung cancer is about five times the non – smoking.

Snuff smoke contains over 4,000 chemical compounds, many of which have been shown to cause cancer, or cancer. The two major carcinogens in tobacco smoke are chemicals known as nitrosamines and polycyclic aromatic hydrocarbons. The risk of developing lung cancer decreases each year after quitting, as normal growth of cells and replace damaged cells in the lungs. In former smokers, the risk of developing lung cancer begins to approach that of a non-smoker for 15 years after quitting.

Passive smoking

Passive smoking, or inhaling the smoke of smokers suck life and work of shared premises, is also a risk factor for developing lung cancer. Research has shown that non-smokers living with a smoker have a 24% increase in risk of developing lung cancer compared to other non-smokers. It is estimated that 3,000 deaths from lung cancer occur each year in the United States that are attributable to passive smoking.

Asbestos fibers

Asbestos fibers are silicate fibers that can persist throughout life in lung tissue after exposure to asbestos. The workplace is a common source of exposure to asbestos fibers, asbestos was widely used in the past that the thermal and acoustic insulation. Today, the use of asbestos is restricted or prohibited in many countries including the United States both lung cancer and mesothelioma (cancer of the pleura, the lung and the lining of the cavity abdominal peritoneum) are associated with exposure to asbestos. Smoking greatly increases the likelihood of developing lung cancer linked to asbestos-exposed workers. Asbestos workers who smoke have a fivefold risk of developing lung cancer than non-smokers and asbestos workers who smoke have a risk that is 50 to 90 times higher than non smoking.

Radon

Radon is a gas, chemically inert gas that is produced by the natural decay of uranium. Uranium decays to form products, including radon, which emit a type of ionizing radiation. Radon is a known cause of lung cancer, and about 12% of deaths from lung cancer attributable to radon, or 15,000-22,000 deaths from lung cancer each year in the United States, making that radon the second leading cause of lung cancers in the U.S. As with exposure to asbestos, smoking increases concomitantly the risk of lung cancer from exposure to radon. Radon gas can travel through soil and enter homes through cracks in the foundations, drains, sewers or other openings. The United States Environmental Protection Agency estimates that one in 15 homes in the U.S. contain dangerous levels of radon gas. Radon is invisible and odorless, but can be detected with simple test kits.

The Familial predisposition

Although most lung cancers are associated with the consumption of tobacco and snuff, the fact that not all smokers eventually develop lung cancer suggests that other factors such as individual genetic predisposition may play a role in the the etiology of lung cancer. Many studies have shown that lung cancer is more likely to occur in smokers and nonsmokers of the family of those who have lung cancer than the general population. Recent research has identified a region on the long (q) arm of chromosome 6, which may contain a gene that confers a greater susceptibility to develop lung cancer in smokers.

Lung diseases

The presence of certain lung diseases, including chronic obstructive pulmonary disease (COPD) is associated with increased risk (four to six times the risk of a non-smoker) to develop lung cancer, even after the concomitant effects tobacco are excluded.

History of lung cancer

Survivors of lung cancer are more at risk than the general population to develop lung cancer second. Survivors of cancers of small cell lung (NSCLC see below) have an additional risk of 1% -2% per year to develop lung cancer second. Among survivors of non-lung cancer, small cell (CPM, see below), the risk of developing certain cancers secondary approaches 6% annually.

Air pollution

Air pollution from power plants, vehicles and industry can increase the likelihood of developing lung cancer among exposed individuals. Up to 1% of deaths from lung cancer are due to inhalation of contaminated air, and experts believe that prolonged exposure to highly polluted air may pose a risk of developing lung cancer similar to that of passive smoking.

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More FAQ About Lung Cancer Part 2

How is treated lung cancer?

For treatment of lung cancer, surgery to remove tumors (radiation X-rays, which kill or to reduce the tumor tumors), chemotherapy (systemic medications that kill all fast-growing cells in the body which cancer cells), and possible experimental procedures are part of your medical tool window. Before deciding which treatment or combination of treatments is good for you, your doctor will determine what your lung cancer at advanced stage, this process is called staging.

Is it possible to prevent lung cancer?

The best way to prevent lung cancer do not smoke and avoid inhaling the smoke of others. If you smoke, stop. Although the risk for former smokers is still high compared to non-smokers, it continues to decrease with each year of smoking cessation. Indeed, after more than 10 years, former smoking reduced the risk by 30% to 50%. Just do it!

There is little evidence that eating a healthy diet can help prevent lung cancer, but there are many other benefits. There have been many attempts to reduce the risk of lung cancer among current or former smokers, giving them high doses of vitamins and vitamin preparations that, but none of these studies have been developed favorably. In a study related to vitamin A nutrient called beta-carotene actually increased the rate of lung cancer, so the drawing board!

What are the different types of lung cancer?

There are two main types of lung cancer: lung non small cell cancer, small cell lung cancer and small cell lung cancer. Non-small-cell lung cancer represents about 80% of lung cancers. They comprise a heterogeneous group of cancers grow and spread more slowly than small cell cancers of the lung. Unlike the accounts of lung small cell accounts for 20% of all lung cancers. Although the cells are small, they multiply rapidly and form large tumors that can spread throughout the body. Smoking almost always causes small cell cancers of the lung.

Maybe lung cancer detected at an early stage?

Unfortunately, there is no test for early detection of lung cancer yet. But this new method is called a spiral or helical low dose CT scan has been successful in detecting early lung cancer in smokers and former smokers, when combined with other noninvasive tests. It has not yet been shown whether this criterion should save lives or improve treatment. On the one hand, he often finds violations, which require testing and surgery, but should not be cancer. It is unclear when and how often these tests should be done. Hopefully the national trial of screening for lung – planned for late 2009 – will provide answers to the ultimate test of whether this is an appropriate way to detect lung cancer early. Until then, talk to your doctor about this test for you.

Do not diet affects the risk of lung cancer?

Although some studies have alluded to the relationship between risk of lung cancer and diet, the association remains unproven. He was arrested by the most rigorous of these studies compared high-risk individuals taking vitamin A for those who do so soon because those who took vitamin A (beta carotene), is actually more advanced lung cancer.

I will explain more detail these frequently asked questions (FAQ) about lung cancer in the next article, hopefully with a more detailed explanation will make us more alert and aware of the meaning of lung cancer description, lung cancer prevention, lung cancer care and treatment lung cancer for patients.