Lung cancer is the uncontrolled growth of abnormal cells in one or both lungs. These abnormal cells do not carry out the functions of normal lung cells and do not develop into healthy lung tissue. As they grow, the abnormal cells can form tumors and interfere with the functioning of the lung, which provides oxygen to the body via the blood.

Lung cancer is the most common cause of death due to cancer in both men and women throughout the world. According to the U.S. National Cancer Institute, approximately one out of every 14 men and women in the U.S. is diagnosed with cancer of the lung at some point in their lifetime. Lung cancer is predominantly a disease of the elderly; almost 70% of people diagnosed with lung cancer are over 65 years of age, while less than 3% of lung cancers occur in people under 45 years of age.

What Causes Lung Cancer?

The development of lung cancer is strongly associated with cigarette smoking, approximately 90% of lung cancers are attributable to use of tobacco. Pipe and cigar smoking can also cause lung cancer, but the risk is not as high as with cigarette smoking. Tobacco smoke contains more than 4,000 chemical compounds, many of which are cancer causing (carcinogens). Passive smoking, i.e. the inhalation of tobacco smoke by non-smokers who live or work with smokers, is also an established risk factor for the development of lung cancer.

Genetic susceptibility (i.e. family history) may play a role in the development of lung cancer. Other causes of lung cancer include air pollution (from vehicles, industry, and power generation) and inhalation of asbestos fibres (usually in the workplace).

Lung Cancer Symptoms

Early symptoms and signs of lung cancer

There may be no symptoms at the onset of the disease. When present, common symptoms of lung cancer may include:

Coughing: This includes a persistent cough that doesn't go away or changes to a chronic smoker's cough, such as more coughing or pain.
Coughing up blood: Coughing up blood or rust-colored sputum (spit or phlegm) should always be discussed with your doctor.
Breathing Difficulties: Shortness of breath, wheezing or noisy breathing (called stridor) may all be signs of lung cancer.
Loss of Appetite: Many cancers cause changes in appetite, which may lead to unintended weight loss.
Fatigue: It is common to feel weak or excessively tired.
Recurring infections: Recurring infections, like bronchitis or pneumonia, may be one of the signs of lung cancer.
Signs of advanced stages of lung cancer

Advanced stages of lung cancer are often characterized by the spread of cancer to distant sites in the body. This may affect the bones, liver or brain. As other parts of the body are affected, new lung cancer symptoms may develop, including:

Bone pain
Swelling of the face, arms or neck
Headaches, dizziness or limbs that become weak or numb
Jaundice
Lumps in the neck or collar-bone region
Treatment

Treatment for cancer involves a combination of surgery to remove cancer cells, chemotherapy and radiation therapy to kill cancer cells. Lung cancer is incurable unless complete surgical removal of the tumour cells can be achieved. Surgery is the most effective treatment for lung cancer, but only a few percentage of lung cancers are suitable for surgery i.e. Stage I and II NSCLC and cancer that has not spread beyond the lung.

Radiation therapy may be used for both NSCLC and SCLC and is a good option for people who are not suitable for surgery or who refuse surgery. Chemotherapy is used for both NSCLC and SCLC. Chemotherapy drugs may be given alone or in combination with surgery or radiation therapy. Chemotherapy is the treatment of first choice for SCLC since it has usually spread extensively in the body by the time it has been diagnosed.

Also used in the treatment of lung cancer are targeted therapies. These are drugs (gefitinib and erlotinib) or antibodies (cetuximab, bevacizumab) that block the growth and spread of cancer by interfering with specific molecules involved in tumor growth and progression. They are used in some patients with NSCLC that does not respond to standard chemotherapy.

Lung Cancer: Causes, Symptoms and Treatments

Being diagnosed with cancer is something no one looks forward to and Gynaecological Cancer is every woman s worst nightmare. However, if diagnosed in time, it can be treated. Cancer in any part of a woman s reproductive system is termed as gynecological cancer. It is of five types:
Cervical cancer
Ovarian cancer
Vaginal cancer
Vulvar cancer and
Uterine cancer
Paying attention to your body and understanding its natural rhythm can help you recognize signs of gynecological cancer. This is because signs of gynecological cancer can be difficult to identify unless you know your body. Here are a five signs to watch out for-
Abnormal Vaginal Bleeding: Bleeding in between periods is okay once in a while but if it happens continuously over a period of 2 to 3 months, do not ignore it. Vaginal bleeding after menopause should also never be ignored. Abnormal bleeding could be triggered by a number of conditions including cancer of the lining of the uterus. Sudden changes in your menstrual blood that persist for over 2 cycles such as heavy bleeding can also be a symptom of uterine cancer. Heavy bleeding can be defined as a period that lasts for over 7 days.
Changes in the Vulva: Any change in colour of development of bumps, sores of thickened skin should be immediately shown to a gynecologist. Any form of vulvar itching or burning should also not be ignored. These conditions could be symptoms of vulvar cancer. Hence, it is important to know what your vulva looks like normally.
Bloating: Persistent bloating that lasts for over a fortnight can be a sign of ovarian cancer. This is especially true in cases of bloating accompanied by sudden weight loss or between-period bleeding.
Change in Bathroom Habits: Due to the proximity of the bladder to the reproductive organs, a tumour or swelling in the reproductive organs can trigger symptoms similar to those of a urinary tract infection. This includes pain while urinating, difficulty passing urine, diarrhea or constipation. Urinary incontinence could also a sign of gynecological cancer.
Abdominal or Back Pain: In rare cases, lower back pain could be a sign of ovarian cancer or uterine cancer. Pain in the lower abdomen or pelvic area can also be a sign of ovarian cancer.
The above could also be signs of other health disorders. The only way of knowing for sure is by consulting a doctor. Hence, understand your body and if you notice any of these symptoms consult your gynecologist at the earliest. 

Signs of Gynecological Cancer

The most dreadful part of getting to work and getting back home in the evening is the being stuck in a traffic jam. Whether you re driving yourself or being driven home, a traffic jam can sap your spirits and make you feel tired even though you re not really exerting yourself. According to a recent study, these traffic jams not only increase your stress levels, but also make your body susceptible to cancer.

Yes! They can be a major reason behind your ill health-

Bumper to bumper traffic that moves at snail pace can be very stressful, especially if you have to get somewhere at a particular time. The irritation of not being able to move at your desired pace adds on to the million other things going on in your mind. The body reacts to stress by increasing blood sugar and blood pressure levels. Long term stress can lead to digestive problems, fertility issues and a weakened immune system that makes the body vulnerable to other diseases and infections. Stress can also lead to the development of behavior like smoking, drinking and over eating which can increase a person s risk of cancer.
Pollution levels are highest at traffic signals and at traffic jams. This is because at a busy intersection, cars go through various stages such as accelerating, braking and idling in a restricted space. Each of these actions is accompanied with emission of toxic gases and fine particles of matter which concentrate in an area and take longer to disperse. Contrary to popular belief, people in cars can be more affected by these pollutants than pedestrians. This is especially true in cases where people have their windows up and fans on as the fans suck in polluted air leading to a buildup of toxic gases inside the car. When these gases and particulate matter are inhaled, they get stuck in the nose and throat and are absorbed into the blood stream. Long term exposure to this can have serious negative effects on the body including a higher risk to cancer. To avoid this, ensure that the setting of the ac of your car or fan is set to only circulate air inside the car without drawing in polluted air from outside.
Also, try and find ways to avoid traffic jams. If your office allows, maybe you could try changing your timing a little. Experiment with routes. Often the inner roads have more twists and turns but much less traffic.


Traffic Jams - Can they Make Your Body Susceptible to Cancer

Lasers have come as a boon to treat many medical conditions very safely and effectively. They are absolutely indispensable for permanent hair removal, tattoo removal, freckle removal, skin rejuvenation, treatment of birthmarks and many other internal medical conditions. There is a common misconception that lasers are harmful for your skin and can cause skin cancers. This is far from the truth, since lasers are actually used to treat skin cancers and also help in keeping the skin youthful and rejuvenated. 

Lasers use non-ionising light (like red or green light) and not ionising radiation like x-rays or gamma rays. These spectrums of light do not induce cancer formation. 
Fair skinned races are at much greater risk than skin of color. Melanin in darker skin does not allow harmful UV light in sunlight to penetrate through and the risk of skin cancers in darker skin is therefore small with normal sun exposure. Also, common lasers do not use UV light. 
Laser treatments are administered not in prolonged durations but in pulses much less than a second and parameters in the range of milliseconds and microseconds are most commonly used. Prolonged sun exposure is the most common precipitating factor for skin cancers. 
Laser light does not reach any internal organ. In fact, it requires some expertise even to make laser light reach its target just 1-2 millimeters below the skin. This is because melanin pigment in skin blocks laser light from getting through. An expert dermatologist with sound knowledge of skin optics and laser physics is able to achieve this safely and effectively. 
Laser treatments work on the principle of ''selective photothermolysis'. This means that laser light very specifically destroys only the intended target. Thus, a hair removal laser will destroy only the hair roots while leaving surrounding skin structures unharmed. Similarly, blood vessels in birth marks, collagen in wrinkles or scars, abnormal growths and cancers and individual inks in tattoos can be targeted very specifically with lasers without affecting any other structure.

Lasers - Do Not Cause Cancers!

Cancer has been regarded as one of the most deadly diseases. It is a non-communicable chronic disorder, caused by uncontrolled growth of cells in the human body. Every year over 7 million people succumb to this disease globally and over 12 million people are diagnosed with cancer. Indian Council of Medical Research (ICMR), estimated that India will observe over 8 lakh deaths and over 17 lakh new cancer cases annually by the year 2020. The survival expectancy of a cancer patient depends upon the stage of diagnosis.

There are some forms of cancer which show any noticeable symptoms only in the final stage while there are certain other subtle symptoms which if paid attention to might save a life.
Some common signs of cancer:

Unexplained weight loss: This is one of the earliest noticeable symptoms of cancer and is particularly common in patients of lung and breast cancer. Weight loss has been observed in over 40% of cancer patients at the time of diagnosis. Losing over 10% of body weight in a span of 6 months or less could be a cause of concern.
Wheezing: This is associated with lung cancer, which is also the most common form of cancer. When the airway in the lungs is pressed or narrowed by a tumor, it creates a wheezing sound while breathing.
Frequent infections: Frequent infections and fever may indicate that something is not right with the internal organs of the body. This could be because of cancerous conditions such as leukemia or lymphoma. 
Loss of appetite: Cancer impacts the metabolic process of the body, hence often leads to a loss of appetite. This is particularly a symptom of colon, stomach, ovaries and pancreatic cancer. 
Blood in stool/urine: Traces of blood while passing stool or urine could be a symptom of cancer. Though, this could be attributed to many other infections and conditions as well.
Chronic cough: Flu and cough along with symptoms like chest pain, hoarseness, weight loss and fatigue could be because of lung cancer.
Night sweats: Though night sweat could be attributed to many more reasons, it is also one of the many early warning signs of cancer.

Early Warning Signs Of Cancer That We Often Ignore!

With the recent number of breast cancer cases on the rise, it is important that we should get the examination done on a regular basis as a preventive measure. Even if someone is suffering from it, it is important that we should make an effort and learn about.

If you have breast cancer then a surgery will be part of your treatment. Based on the condition, surgery will be carried out due to any of the following reasons:
1. To remove the cancerous tissues from the breast
2. To reconstruct the breast once the cancer is removed
3. To check whether the cancer has spread to the lymph nodes below the arm
4. To treat symptoms of cancer that has progressed to an advanced stage

Breast cancer surgery may be classified into two types
1. Mastectomy: Mastectomy involves removing the entire breast; tissues in the adjoining region may also be removed. A double mastectomy is a procedure where both the breasts are removed.
2. Breast-conserving surgery: In this surgery, only parts of the breast affected by cancer are removed. The area of the breast that is to be removed will depend on the severity of the cancer. Some healthy tissues may also be removed in this surgery.

Usually, if a woman is in the initial stages of cancer then she may opt for the latter as it entails removing parts of the breast. They may also undergo radiation therapy along with these surgeries.
For checking if the cancer has spread to the lymph nodes below the arm, the lymph nodes are removed from the body. Once they are removed, they are studied under a microscope to check if it has spread, if yes then the extent of their damage. This procedure is carried out along with the surgery to remove the cancer.

Once the mastectomy procedure is completed, you can opt for a breast reconstruction surgery to rebuild the area. You may opt for this procedure at the time of breast cancer removal or at a later stage. If you are considering breast reconstruction surgery then you should discuss it with your surgeon.

Surgery is sometimes not used to treat cancer, but in slowing the progression of cancer or even reducing its symptoms.It is important you talk to your surgeon before the procedure to understand the goal of the surgery.

Surgical Procedure for Treating Breast Cancer

Don't wait any longer, manage your Thoracic Oncologist online with a Lybrate doctor today

Consult for Thoracic Oncologist - Online and Easy!

FilterClear All

COMMON SPECIALITIES

COMMON ISSUES