How To Prevent Cancer - A Detailed Study

July 2nd, 2009
Ange Gothi asked:


Reduce Your Risk



Consider this number: 10 million. That’s how many cases of cancer are diagnosed worldwide each year. Now consider this number: 15 million. That’s how many cases of cancer the World Health Organization estimates will be diagnosed in the year 2020 — a 50 percent increase — if we don’t get our act together.

Most cancers don’t develop overnight or out of nowhere. Cancer is largely predictable, the end result of a decades-long process, but just a few simple changes in your daily life can significantly reduce your risk. Here are 31 great tips.

1. Serve sauerkraut at your next picnic. A Finnish study found that the fermentation process involved in making sauerkraut produces several other cancer-fighting compounds, including ITCs, indoles, and sulforaphane. To reduce the sodium content, rinse canned or jarred sauerkraut before eating. 2. Eat your fill of broccoli, but steam it rather than microwaving it. Broccoli is a cancer-preventing superfood, one you should eat frequently. But take note: A Spanish study found that microwaving broccoli destroys 97 percent of the vegetable’s cancer-protective flavonoids. So steam it, eat it raw as a snack, or add it to soups and salads.

3. Toast some Brazil nuts and sprinkle over your salad. They’re a rich form of selenium, a trace mineral that convinces cancer cells to commit ******* and helps cells repair their DNA. A Harvard study of more than 1,000 men with prostate cancer found those with the highest blood levels of selenium were 48 percent less likely to develop advanced disease over 13 years than men with the lowest levels. And a dramatic five-year study conducted at Cornell University and the University of Arizona showed that 200 micrograms of selenium daily — the amount in two unshelled Brazil nuts — resulted in 63 percent fewer prostate tumors, 58 percent fewer colorectal cancers, 46 percent fewer lung malignancies, and a 39 percent overall decrease in cancer deaths.

4. Pop a calcium supplement with vitamin D. A study out of Dartmouth Medical School suggests that the supplements reduce colon polyps (a risk factor for colon cancer) in people susceptible to the growths. 5. Add garlic to everything you eat. Garlic contains sulfur compounds that may stimulate the immune system’s natural defenses against cancer, and may have the potential to reduce tumor growth. Studies suggest that garlic can reduce the incidence of stomach cancer by as much as a factor of 12! 6. Sauté two cloves of crushed garlic in 2 tablespoons of olive oil. then mix in a can of low-sodium, diced tomatoes. Stir gently until heated and serve over whole wheat pasta. We already mentioned the benefits of garlic. The lycopene in the tomatoes protects against colon, prostate, and bladder cancers; the olive oil helps your body absorb the lycopene; and the fiber-filled pasta reduces your risk of colon cancer. As for the benefits of all of these ingredients together: They taste great!

7. Every week, buy a cantaloupe at the grocery store and cut it up after you put away your groceries. Store it in a container and eat several pieces every morning. Cantaloupe is a great source of carotenoids, plant chemicals shown to significantly reduce the risk of lung cancer.

The Power of Antioxidants

8. Mix half a cup of blueberries into your morning cereal. Blueberries rank number one in terms of their antioxidant power. Antioxidants neutralize free radicals, which are unstable compounds that can damage cells and lead to diseases including cancer.

9. Learn to eat artichokes tonight. Artichokes are a great source of silymarin, an antioxidant that may help prevent skin cancer. To eat these delicious veggies, peel off the tough outer leaves on the bottom, slice the bottom, and cut off the spiky top. Then boil or steam until tender, about 30-45 minutes. Drain. Dip each leaf in a vinaigrette or garlic mayonnaise, then gently tear the fibrous covering off with your front teeth, working your way inward to the tender heart. Once there, gently scoop the bristles from the middle of the heart, dip in a little butter or lemon juice, and enjoy! 10. Coat barbecue food with a thick sauce. Grilling meat can create a variety of cancer-causing chemicals. But researchers from the American Institute for Cancer Research found that coating the meat with a thick marinade and thereby preventing direct contact with the charring flames reduced the amount of such chemicals created. Another tip: Precook your meat in the oven and then throw it on the grill to finish.

11. Every time you go to the bathroom, stop by the kitchen or water cooler for a glass of water. A major study published in The New England Journal of Medicine in 1996 found that men who drank six 8-ounce glasses of water every day slashed their risk of bladder cancer in half. Another study linked the amount of water women drank to their risk of colon cancer, with heavy water drinkers reducing their risk up to 45 percent.

12. Take up a tea habit. The healing powers of green tea have been valued in Asia for thousands of years. In the West, new research reveals that it protects against a variety of cancers as well as heart disease. Some scientists believe that a chemical in green tea called EGCG could be one of the most powerful anticancer compounds ever discovered. 13. Have a beer tonight. Beer protects against the bacterium Helicobacter pylori, known to cause ulcers and possibly linked to stomach cancer. But don’t overdo it. Drinking more than one or two alcoholic drinks a day may increase your risk of mouth, throat, esophageal, liver, and ****** cancer. 14. Throw some salmon on the grill tonight. Australian researchers studying Canadians (go figure) found those who ate four or more servings of fish per week were nearly one-third less likely to develop the blood cancers leukemia, myeloma, and non-Hodgkin’s lymphoma. Other studies show a link between eating fatty fish (salmon, mackerel, halibut, sardines, and tuna, as well as shrimp and scallops) with a reduced risk of endometrial cancer in women. Ah, those amazing omega-3s at it again! 15. Take a multivitamin every morning. Many studies suggest getting the ideal levels of vitamins and minerals can improve your immune system function and help prevent a variety of cancers. 16. Get about 15 minutes of sunlight on your skin each day. You’ve heard of the sunshine vitamin, vitamin D haven’t you? Turns out we’ve been so good at heeding advice to slather on sun lotion and avoid the sun’s rays that many of us aren’t getting enough of this valuable nutrient. Researchers find that getting too little vitamin D may increase your risk of multiple cancers, including breast, colon, prostate, ovarian, and stomach, as well as osteoporosis, diabetes, multiple sclerosis, and high blood pressure. The best source? Exposure to UVB rays found in natural and artificial sunlight. About 15 minutes a day ought to do it. Avoid overexposure, of course. That can increase your risk for cancers of the skin. You can also get vitamin D in your calcium supplement if you choose a supplement that contains both. 17. Carry a shot glass in your beach bag. Then fill it with sunscreen and rub it all over your body. A shot glass holds about 1.5 ounces, which is how much sunscreen dermatologists estimate you need to protect yourself from the cancer-causing UV rays of the sun. Repeat every two hours. 18. Cut a kiwifruit in half, then scoop out the flesh with a spoon. Now eat! Kiwi is a little hand grenade of cancer-fighting antioxidants, including vitamin C, vitamin E, lutein, and copper. You can also rub a couple of cut kiwifruit on a low-fat cut of meat as a tenderizer. 19. Use a condom and stick to one partner. The more sexual partners a woman has, the greater her risk of contracting human papillomavirus, or HPV, which causes cervical cancer. Having an unfaithful husband also increases her risk. 20. Cut out high-fat animal protein. A Yale study found that women who ate the most animal protein had a 70 percent higher risk of developing non-Hodgkin’s lymphoma, while those who ate diets high in saturated fat increased their risk 90 percent. So switch to low-fat or nonfat dairy, have poultry or fish instead of beef or pork, and use olive oil instead of butter.

21. Have your partner feed you grapes. They’re great sources of resveratrol, the cancer-protecting compound found in wine, but don’t have the alcohol of wine, which can increase the risk of ****** cancer in women. Plus, the closeness such an activity engenders (we hope) strengthens your immune system.

22. Sprinkle scallions over your salad. A diet high in onions may reduce the risk of prostate cancer 50 percent. But the effects are strongest when they’re eaten raw or lightly cooked. So try scallions, Vidalia onions, shallots, or chives for a milder taste. 23. Make a batch of fresh lemonade or limeade. A daily dose of citrus fruits may cut the risk of mouth, throat, and stomach cancers by half, Australian researchers found. Unecessary Chemicals

24. Take a 30-minute walk every evening after dinner. That’s all it takes to reduce your ****** cancer risk, according to a study from the Fred Hutchinson Cancer Research Center in Seattle. Turns out that moderate exercise reduces levels of estrogen, a hormone that contributes to ****** cancer. When 170 overweight, couch potato women ages 50-75 did some form of moderate exercise for about three hours a week, levels of circulating estrogen dropped significantly after three months. After a year, those who lost at least 2 percent of their body fat had even greater decreases in estrogen. Another study linked four hours a week of walking or hiking with cutting the risk of pancreatic cancer in half. The benefits are probably related to improved insulin metabolism due to the exercise.

25. Buy organic foods. They’re grown without added pesticides or hormones, both of which can cause cellular damage that may eventually lead to cancer.

26. Learn to love dandelions. Using commercial pesticides on your lawn may increase your risk of cancer, since most contain pesticides such as 2,4-D (linked to non-Hodgkin’s lymphoma) and MCPP (associated with soft-tissue cancers). Plus, pesticides used solely on lawns don’t have to go through the same rigorous testing for long-term health effects as those used on food. And, as E/The Environmental Magazine noted in a 2004 article, no federal studies have assessed the safety of lawn-care chemicals in combination, the way most are sold.

27. Buy clothes that don’t need to be dry-cleaned. Many dry cleaners still use a chemical called perc (perchloroethylene), found to cause kidney and liver damage and cancer in animals repeatedly exposed through inhalation. Buying clothes that don’t require dry cleaning, or hand washing them yourself, can reduce your exposure to this chemical. If you must dry-clean your clothes, take them out of the plastic bag and air them outside or in another room before wearing.

28. Choose cucumbers over pickles, fresh salmon over lox. Studies find that smoked and pickled foods contain various carcinogens.

29. Switch from french fries and potato chips to mashed potatoes and pretzels. A potential cancer-causing compound called acrylamide forms as a result of the chemical changes that occur in foods when they’re baked, fried, or roasted. Not surprisingly, many foods with the greatest amounts of acrylamide are also some of the worst-for-you foods, such as french fries, potato chips, and baked sweets. Although the results aren’t final yet, Michael Jacobson, Ph.D., executive director of the Center for Science in the Public Interest, estimates acrylamide causes between 1,000 and 25,000 cancers per year. His agency has petitioned the Food and Drug Administration to set limits on the amount of acrylamide foods can contain. The FDA is studying the issue.

30. Go for a spray-on tan. They’re available in most tanning salons these days and, unlike tanning beds, there’s no evidence that they increase your risk of skin cancer.

31. Call up your bowling pal and hit the lanes. A study from the State University of New York at Stony Brook found that men with high levels of stress and those with less satisfying contacts with friends and family members had higher levels of prostate-specific antigen (PSA) in their blood, a marker for the development of prostate cancer.

Fight Cancer With Anti Aging



Information About Various Types of Cancer

June 25th, 2009
Peter sams asked:


Cancer

The organs and tissues of the body are made up of tiny building blocks called cells. Cancer is a disease of these cells. Cells in different parts of the body may look and work differently but most reproduce themselves in the same way.

Cells are constantly becoming old and dying, and new cells are produced to replace them. Normally, cells divide in an orderly and controlled manner. If for some reason the process gets out of control, the cells carry on dividing, developing into a lump which is called a tumour.

Cancer is a term for diseases in which abnormal cells divide without control and can invade other tissues. Cancer cells can spread to other parts of the body through the blood and lymph systems.

Brain Cancer

A brain tumor is a group or clump of abnormally growing cells that can be found in or on the brain. They’re rare in kids Brain tumors can either start in the brain or spread there from another part of the body - some cancers that start in other parts of the body may have cells that travel to the brain and start growing there.

Lung Cancer

Lung cancer is one of the most common cancers in the world. It is a leading cause of cancer death in men and women in the United States. Cigarette smoking causes most lung cancers. The more cigarettes you smoke per day and the earlier you started smoking, the greater your risk of lung cancer. High levels of pollution, radiation and asbestos exposure may also increase risk. Cancer that forms in tissues of the lung, usually in the cells lining air passages. The two main types are small cell lung cancer and non-small cell lung cancer.

It usually spreads to different parts of the body more slowly than small cell lung cancer. Squamous cell carcinoma, adenocarcinoma, and large cell carcinoma are three types of non-small cell lung cancer. Small cell lung cancer also called oat cell cancer, accounts for about 20% of all lung cancer.

Skin Cancer

Skin cancer is the most common form of cancer in the United States. The two most common types are basal cell cancer and squamous cell cancer. They usually form on the head, face, neck, hands and arms. Another type of skin cancer, melanoma, is more dangerous but less common. Skin cancers are the fastest growing type of cancer in the United States. Skin cancer represents the most commonly diagnosed malignancy, surpassing lung, breast, colorectal and prostate cancer. Cancer that forms in tissues of the skin. There are several types of skin cancer. Skin cancer that forms in melanocytes (skin cells that make pigment) is called melanoma. Skin cancer that forms in basal cells (small, round cells in the base of the outer layer of skin) is called basal cell carcinoma

Ear Cancer

Cancer of the outer ear occurs chiefly in instances where the outer ear has been exposed for many years to direct sunlight. A small and at first painless ulcer, with a dry scab covering it, that slowly enlarges and deepens may be a skin cancer. It is diagnosed by removing a small bit of tissue from the edge and examining it under a microscope.

Head And Neck Cancer

Tobacco is the most preventable cause of these deaths a lump in the neck Cancers that begin in the head or neck usually spread to lymph nodes in the neck before they spread elsewhere. A lump in the neck that lasts more than two weeks should be seen by a physician as soon as possible. Of course, not all lumps are cancer. But a lump (or lumps) in the neck can be the first sign of cancer of the mouth, throat, voice box (larynx), thyroid gland, or of certain lymphomas or blood cancers. Such lumps are generally painless and continue to enlarge steadily.



Signs and Symptoms of Cancer

May 5th, 2009
Dr.Badruddin Khan asked:


A symptom is an indication of disease, illness, injury, or that something is not right in the body. Symptoms are felt or noticed by a person, but may not easily be noticed by anyone else. For example, chills, weakness, achiness, shortness of breath, and a cough may be symptoms of pneumonia. A sign is also an indication that something is not right in the body. But signs are defined as things that can be seen by a doctor, nurse, or other health care professional. Fever, rapid breathing rate, and abnormal breathing sounds heard through a stethoscope may be signs of pneumonia.

Having one symptom or sign may not give enough information to suggest a cause. For example, a rash in a child could be a symptom of a number of things including poison ivy, an infectious disease like measles, an infection limited to the skin, or a food allergy. But if the rash is seen along with other signs and symptoms like a high fever, chills, achiness, and a sore throat, then a doctor can get a better picture of the illness. In many cases, a patient’s signs and symptoms do not give enough clues by themselves for the doctor to figure out the cause of an illness. Then medical tests, such as x-rays, blood tests, or a biopsy may be needed.

Cancer is a group of diseases that may cause almost any sign or symptom. The signs and symptoms will depend on where the cancer is, the size of the cancer, and how much it affects the nearby organs or structures. If a cancer spreads (metastasizes), then symptoms may appear in different parts of the body. As a cancer grows, it begins to push on nearby organs, blood vessels, and nerves. This pressure creates some of the signs and symptoms of cancer. If the cancer is in a critical area, such as certain parts of the brain, even the smallest tumor can cause early symptoms.

But sometimes cancers start in places where it does not cause any symptoms until the cancer has grown quite large. Pancreas cancers, for example, do not usually grow large enough to be felt from the outside of the body. Some pancreatic cancers do not cause symptoms until they begin to grow around nearby nerves (this causes a backache). Others grow around the bile duct, which blocks the flow of bile and leads to a yellowing of the skin known as jaundice. By the time a pancreatic cancer causes these signs or symptoms, it has usually reached an advanced stage.

A cancer may also cause symptoms such as fever, fatigue, or weight loss. This may be because cancer cells use up much of the body’s energy supply or release substances that change the body’s metabolism. Or the cancer may cause the immune system to react in ways that produce these symptoms. Sometimes, cancer cells release substances into the bloodstream that cause symptoms not usually thought to result from cancers. For example, some cancers of the pancreas can release substances which cause blood clots to develop in veins of the legs. Some lung cancers make hormone-like substances that affect blood calcium levels, affecting nerves and muscles and causing weakness and dizziness.

Treatment is most successful when cancer is found as early as possible. Finding cancer early usually means it can be treated while it is still small and is less likely to have spread to other parts of the body. This often means a better chance for a cure, especially if initial treatment is to be surgery. A good example of the importance of finding cancer early is melanoma skin cancer. Skin cancer can be easy to remove if it has not grown deep into the skin, and the 5-year survival rate (percentage of people living at least 5 years after diagnosis) at this stage is nearly 100%. But once melanoma has spread to other parts of the body the survival rate drops dramatically.

Sometimes people ignore symptoms either because they do not know that the symptoms could mean something is wrong or because they are frightened by what they might mean and don’t want to seek medical help. General symptoms, such as fatigue, are more likely to have a cause other than cancer and can seem unimportant, especially if they have an obvious cause or only last a short time. In a similar way, a person may reason that a more specific symptom like a ****** mass is probably a cyst that will go away by itself. But neither of these symptoms should be discounted or overlooked, especially if they have been present for a long time or are getting worse.

Most likely, any symptoms you may have will not be caused by cancer, but it’s important to have them checked out by your doctor, just in case. If cancer is not the cause, your doctor can help figure out what is and treat it, if needed. In some cases it is possible to detect some cancers before symptoms occur. The American Cancer Society and other health groups encourage the early detection of certain cancers before symptoms occur by recommending a cancer-related check-up and specific tests for people who do not have any symptoms. Keep in mind, however, that these recommended tests do not decrease the importance of reporting any symptoms to your doctor.

It is important to know what some of the general (non-specific) signs and symptoms of cancer are, but remember that having any of these does not mean that you have cancer. There are many other conditions that can cause these signs and symptoms, too. Most people with cancer will lose weight at some time with their disease. An unexplained (unintentional) weight loss of 10 pounds or more may be the first sign of cancer, particularly cancers of the pancreas, stomach, esophagus, or lung.

Fever is very common with cancer, but is more often seen in advanced disease. Almost all patients with cancer will have fever at some time, especially if the cancer or its treatment affects the immune system and makes it harder for the body to fight infection. Less often, fever may be an early sign of cancer, such as with leukemia or lymphoma. Fatigue may be an important symptom as cancer progresses. It may happen early, though, in cancers such as with leukemia, or if the cancer is causing an ongoing loss of blood, as in some colon or stomach cancers. Pain may be an early symptom with some cancers such as bone cancers or testicular cancer. But most often pain is a symptom of advanced disease. Along with cancers of the skin, some internal cancers can cause skin signs that can be seen. These changes include the skin looking darker (hyper pigmentation), yellow (jaundice), or red (erythema); itching; or excessive hair growth.Along with the above general symptoms, you should watch for the following common symptoms, which could be an indication of cancer. Again, there may be other causes for each of these, but it is important to bring them to your doctor’s attention as soon as possible so that they can be investigated.

Long-term constipation, diarrhea, or a change in the size of the stool may be a sign of colon cancer. Pain with urination, blood in the urine, or a change in bladder function (such as more frequent or less frequent urination) could be related to bladder or prostate cancer. Any changes in bladder or bowel function should be reported to your doctor. Skin cancers may bleed and look like sores that do not heal. A long-lasting sore in the mouth could be an oral cancer and should be dealt with right away, especially in patients who smoke, chew tobacco, or frequently drink alcohol. Sores on the ***** or ****** may either be signs of infection or an early cancer, and should not be overlooked.

Unusual bleeding can happen in either early or advanced cancer. Blood in the sputum (phlegm) may be a sign of lung cancer. Blood in the stool (or a dark or black stool) could be a sign of colon or rectal cancer. Cancer of the cervix or the endometrium (lining of the uterus) can cause vaginal bleeding. Blood in the urine may be a sign of bladder or kidney cancer. A bloody discharge from the ****** may be a sign of ****** cancer. Many cancers can be felt through the skin, mostly in the breast, testicle, lymph nodes (glands), and the soft tissues of the body. A lump or thickening may be an early or late sign of cancer. Any lump or thickening should be reported to your doctor, especially if you’ve just discovered it or noticed it has grown in size.

While they commonly have other causes, indigestion or swallowing problems may be a sign of cancer of the esophagus, stomach, or pharynx (throat). Any wart, mole, or freckle that changes in color, size, or shape, or loses its definite borders should be reported to your doctor without delay. The skin lesion may be a melanoma which, if diagnosed early, can be treated successfully. A cough that does not go away may be a sign of lung cancer. Hoarseness can be a sign of cancer of the larynx (voice box) or thyroid. While the signs and symptoms listed above are the more common ones seen with cancer, there are many others that are less common and are not listed here. If you notice any major changes in the way your body functions or the way you feel, especially if it lasts for a long time or gets worse, let your doctor know. If it has nothing to do with cancer, your doctor can investigate it and treat it, if needed. If it is cancer, you’ll give yourself the best chance to have it treated early, when treatment is most likely to be effective.

 



What Is Lung Cancer And What Cause It

May 1st, 2009
Alisha Dhamani asked:


Lung cancer is the leading cause of cancer deaths in both women and men in the United States and throughout the world. Lung cancer has surpassed ****** cancer as the leading cause of cancer deaths in women.

In the United States in 2007, 160,390 people were projected to die from lung cancer, which is more than the number of deaths from colorectal, breast, and prostate cancer combined.

Only about 2% of those diagnosed with lung cancer that has spread to other areas of the body are alive five years after the diagnosis, although the survival rates for lung cancers diagnosed at a very early stage are higher, with approximately 49% surviving for five years or longer.

Some lung tumors are metastatic from cancers elsewhere in the body. The lungs are a common site for metastasis. If this is the case, the cancer is not considered to be lung cancer. For example, if prostate cancer spreads via the bloodstream to the lungs, it is metastatic prostate cancer (a secondary cancer) in the lung and is not called lung cancer.

Cancer occurs when normal cells undergo a transformation that causes them to grow and multiply without the normal controls. The cells form a mass or tumor that differs from the surrounding tissues from which it arises. Tumors are dangerous because they take oxygen, nutrients, and space from healthy cells.

About 90% of lung cancers arise due to tobacco use. Cigarette smoking is the most important cause of lung cancer. Research as far back as the 1950s clearly established this relationship. Cigarette smoke contains more than 4,000 chemicals, many of which have been identified as causing cancer. A person who smokes more than one pack of cigarettes per day has a risk of developing lung cancer 20-25 times greater than someone who has never smoked.

However, Once a person quits smoking, his or her risk for lung cancer gradually decreases. About 15 years after quitting, the risk for lung cancer decreases to the level of someone who never smoked. Cigar and pipe smoking also increases the risk of lung cancer but not as much as smoking cigarettes.

Most lung tumors are malignant. This means that they invade and destroy the healthy tissues around them and can spread throughout the body.

The tumors can also spread to nearby lymph nodes or through the bloodstream to other organs. This process is called metastasis. When lung cancer metastasizes, the tumor in the lung is called the primary tumor, and the tumors in other parts of the body are called secondary tumors or metastatic tumors.

Adenocarcinoma (an NSCLC) is the most common type of lung cancer, making up 30%-40% of all cases. A subtype of adenocarcinoma is called bronchoalveolar cell carcinoma, which creates a pneumonia-like appearance on chest x-rays. Squamous cell carcinoma (an NSCLC) is the second most common type of lung cancer, making up about 30% of all lung cancers. Large cell cancer (another NSCLC) makes up 10% of all cases. SCLC makes up 20% of all cases. And finally, Carcinoid tumors account for only 1% of all cases.

Lung cancers are usually divided into two main groups that account for about 95% of all cases. These division into groups is based on the type of cells that make up the cancer. About 5% of lung cancers are of rare cell types, including carcinoid tumor, lymphoma, and others.

The two main types of lung cancer are characterized by the cell size of the tumor when viewed under the microscope. They are called small cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC). NSCLC includes several subtypes of tumors. SCLCs are less common, but they grow more quickly and are more likely to metastasize than NSCLCs. Often, SCLCs have already spread to other parts of the body when the cancer is diagnosed.

Up to one-fourth of all people with lung cancer may have no symptoms when the cancer is diagnosed. These cancers usually are identified incidentally when a chest x-ray is performed for another reason. The majority of people, however, develop symptoms. The symptoms are due to direct effects of the primary tumor, to effects of metastatic tumors in other parts of the body, or to disturbances of hormones, blood, or other systems caused by the cancer.

Symptoms of primary lung cancers include cough, coughing up blood, chest pain, and shortness of breath. Symptoms of metastatic lung tumors depend on the location and size. About 30%-40% of people with lung cancer have some symptoms or signs of metastatic disease.

A cough that does not go away or gets worse over time should be evaluated by a health-care provider. Also, Coughing up blood (hemoptysis) occurs in a significant number of people who have lung cancer. Any amount of coughed-up blood is cause for concern. Chest pain is a symptom in about one-fourth of people with lung cancer. The pain is dull, aching, and persistent and may involve other structures surrounding the lung.

Additionally, shortness of breath usually results from a blockage to the flow of air in part of the lung, collection of fluid around the lung (pleural effusion), or the spread of tumor throughout the lungs. Wheezing or hoarseness may signal blockage or inflammation in the lungs that may go along with cancer. Finally, Repeated respiratory infections, such as bronchitis or pneumonia, can be a sign of lung cancer.