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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
- 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.
Hi, One of my relative is taking" GUTKHA" for about more than 15 years and she is about 37 yrs. Old. At what age she may be suffer from Cancer. OR she may not be. please reply. Thanks a lot in advance.:)
I Have 1) WEIGHT LOSS 10 KGS IN 3 Months, 2) Flank Pain OR Left/Right Lower abdominal Pain, 3) Blood in Urine then Block Urine, 4) 3-4HPF Pus Cells in Urine. UROLOGIST Doctor done Cystoscopy and finds 1) PUS In Prostate Gland, 2) Bladder trabeculation, 3) Mild Narrow of Left Ureter. NCCT KUB is NORMAL. Can You Please tell me the 1) CAUSE of Weight Loss and Pus in Prostate Please tell.
2. Take a daily Probiotic
3. Do not touch added sugar - glucose or High Fructose Corn Syrup
4. Avoid mass market cows´ dairy (unpasteurised milk from grass fed cattle does, however, have advantages)
Sir what are the symptoms of mouth cancer. I smoke hukka Thrice a week. And I have got sore mouth. Is this a symptom of cancer?
My brother who is 83 years old is suffering from urinary problem. He isw able to pass urine without any burning sensation-no blood coming. Doctor diagnosed this as a problem of prostrate cancer. Accordingly biopsy was done. I give below their observation" The histologic findings are suspicious of prostrate adenocarcinoma (gleason score 3 3=6. Close correlation withTRUS findings andSOS repeat Biopsy is recommended" Pls advise what is this and what treatment you suggest. Does this confirm that there is cancer. Pls advise.
Advice to use monurol sachet for chronic prostatitis? Have undergone surgery for removal of prostate (non cancer related)
Hi Urimax .4 mg as advised to me for treatment of enlarged prostate is right and enough. Secondly is this problem exagrate in winter and in colder places say like AC rooms.
I have prostate. Kindly advise what should I take as medicine or diet. Moreover, very often I have boils in my mouth.
Hii. Mother had breast cancer n she went through a surgery n chemotherapy in aiims n now there is 3 month delay in radio so is there any harm if radio is getting delay. please answer me.
I'm a 19 year old girl. I'm diagnosed with Fibroadenoma in my right breast. The size is 54*46 mm. I'm using homeopathy medicines since 4 months and the doctor is saying that the lump will be dissolved in another few months. For second opinion I consulted another doctor who said Surgery is the better option. Should I just wait for few more months or get the surgery done. I personally want to get rid of the lump.
It is a tumour of an extremely reread kind misdiagnosed as breast cancer
Phyllode tumours have both benign and aggressive or malignant counterparts which is determined by pathologist after examining the tissue that is removed. Malignant phyllodes are notorious for rapidly growing in size recurring after complete surgical removal and in extremely rare instances spreading to distant sites