Lung cancer is caused by disorderly growth of uncommon cells which line the air passage, usually starting off in a single or both lungs. The irregular cells do not mature into healthy lung tissue but instead divide speedily and result in tumor formation.

Causes behind lung cancer:

Smoking: This is considered as the most significant source of lung cancer. As reported by multiple researches and studies, cigarettes contain over 4,000 chemicals, most of which are cancer causing agents. Active smoking is one of the major causes of lung cancer but what may come to you as a surprise is that extended periods of passive smoking is also a major factor.
Pollution and Exposure: There is high risk of lung cancer development when there is occupational exposure to pollution by chemicals released from industrial factories. Chemical exposure of this kind refers to prolonged exposure over quite few months or years. Some examples of these chemicals are asbestos, diesel exhaust among many others.
Radioactive Gas: Radioactive gases naturally occur in small masses present in all soils and rocks. However, if you breathe in radioactive gases your lungs will damage and may cause the development of abnormal tissue which can cause lung cancer.
Family history: A family history of cancer, especially lung cancer will also put you at high risk of developing lung cancer.
Treatment methods of lung cancer:

Chemotherapy: Chemotherapy is a method in which drugs are injected through veins in your arm (intravenously) or orally or in a combination of both. These drugs kill cancer cells and help to stop it from spreading any further as well.
Clinical Trials: These trials are experimental lung cancer treatment studies. You may have to try out this clinical therapy if other treatment methods aren t working and only if you are accepted into it.
Surgery: A surgeon will help remove affected areas of the lung including cancerous tumors via surgery. The surgeon may need to remove parts of the lung along with the cancerous growth. In certain cases, one side of the lung may also be completely removed to stop the spread of the malignant tissue.
Radiation Therapy: This is a therapy where high energy electromagnetic waves are passed through your body to destroy cancer cells with the help of high-powered energy beams.
Can you prevent lung cancer?

Nutrition -- A  healthy diet with lots of fruits and vegetables may also help reduce your risk of lung cancer. Some evidence suggests that a diet high in fruits and vegetables may help protect against lung cancer in both smokers and non-smokers. But any positive effect of fruits and vegetables on lung cancer risk would be much less than the increased risk from smoking.
Exercise -- Even moderate amounts of exercise can aid in lung cancer prevention. Studies suggest that even something as simple as gardening twice a week is associated with a lower risk of developing lung cancer.
Smoking Habits -- If you stop smoking before a cancer develops, your damaged lung tissue gradually starts to repair itself. No matter what your age or how long you ve smoked, quitting may lower your risk of lung cancer and help you live longer. 
Avoidance of Air Pollution -- Long-term exposure to ambient air pollution and, in particular, particulate matter with absorbed polycyclic aromatic hydrocarbons and other genotoxic chemicals has been suspected to increase the risk for lung cancer. So, avoid air pollution as much as possible.

Lung Cancer - Ways You Can Prevent It!

Skin cancer is a condition with abnormal and cancerous skin growths. This often develops due to the overexposure of skin to the rays of the sun. The three main types of skin cancer include basal cell carcinoma, squamous cell carcinoma and melanoma. Skin cancer affects those areas of skin which remains sun-exposed including ears, neck, chest, scalp, lips, face, hands, arm and legs. It can also develop on those areas of skin that are not exposed to sunlight like beneath toenails or fingernails, on palms and on the genital area.

Risk factors associated with skin cancer

Here are some of the factors which increase your risks of getting skin cancer:

1. Fair complexion: Low levels of the pigment melanin in skin causes fair complexion. Fair- skinned individuals who have a history of hazel or blue eyes, repeated sunburns and people who have red or blond hair are highly susceptible to developing this form of cancer. Less pigment in skin makes an individual more vulnerable to skin damage from harmful UV radiation.

2. Excessive sun exposure: Exposure to the sun may lead to the development of skin cancer if you don't protect your skin by sunscreen and clothing. Tanning beds and lamps may also increase the risk of developing this type of skin cancer.

3. High-altitude places: The exposure to sunlight is more intense in areas of high altitude and near the equator. Living at higher elevation also makes you more vulnerable to radiation because the sunlight is strongest there.

4. Moles: People with abnormal moles are at a higher risk of developing skin cancer. These moles are irregular in shape and are larger than normal moles.

5. Precancerous skin lesions: Your risk of developing skin cancer increases if you have skin lesion. These are scaly and rough patches that range from brown to dark pink in color. The most commonly affected areas are head, hands and face of fair-skinned people.

6. Weak immune system: Weak immune system caused by HIV or AIDS and immunosuppressant drugs that you take after an organ transplant may increase your risk of developing skin cancer.

Skin Cancer - What Can Cause It?

Photodynamic therapy or PDT is a relatively new and non-invasive treatment for non melanomaskin cancer. It is mostly used in cases where the cancer is superficial and has not spread too deep. PDT is used mostly to treat Actinic Keratoses on the face and scalp, Basal cell carcinomas, Bowen s disease, as well as other conditions such as head and neck, mouth, lung and gullet cancer.

How does it work?
This treatment involves the use of a drug known as photosensitize or a photosensitizing agent with a specific type of light. When the photosensitizing agents get exposed to a light of a specific wavelength, a form of oxygen is produced, which eliminates nearby cancer cells. Every photosensitizer gets activated by the special light. The wavelength of the light determines how much it can penetrate into the body.

Process of Photodynamic therapy
Skin cancer is cured by PDT in several steps. The first step involves the injection of a photosensitizer into the patient s bloodstream. The blood cells absorb the agent all over the body, but in the cancer cells, it stays for a longer duration. Within 72 hours after the injection is given, the skin is exposed to light. The photosensitizer agent present in the cancer affected cells absorbs the light. An active oxygen form gets produced, which kills the cancer cells.

Other than killing the cancer cells directly, PDT uses two other ways to destroy cancerous tumors. The blood vessels in the tumor are affected, which leads to its death. The immune system also gets charged up and activated for fighting the cancer cells.

The light used for PDT is usually in the form of a laser. LEDs are also used to treat tumors present on the surface of the skin. The primary photosensitizing agent used in PDT is called porfimer sodium or Photofrin.

PDT can be undertaken in the outpatient department in a hospital. After taking the treatment, you have to keep the cancer affected area of the skin dry and covered for 36 hours. The area should be treated with care while showering. In case of thick skin lesions, repeat treatments are required within 4 weeks.

When is PDT used for skin cancer
PDT can be undertaken instead of surgery for treating basal cell cancer, Bowen s disease and actinic keratosis. PDT is used in cases where surgeries are required. It is used to treat large skin cancers, which are not very deep and in the case when several cancers develop in an area. For many skin conditions, PDT is a better remedy than undergoing a surgery.

Advantages of PDT

    There are no long term side effects.
    The process is less invasive compared to surgery.
    A very short time is taken for this therapy to be undertaken.
    The process can be repeated several times in the same area.
    Very less scarring takes place in the affected area.
    The cost of this procedure is lesser than surgery.

Treating Skin Cancer with Photodynamic Therapy

Irrfan Khan's saddening revelation about his health and diagnosis of Neuroendocrine tumour (NET) has undoubtedly created a rage amongst his fans, which is now being followed by good wishes for speedy recovery from his supporters all across social media.  

The actor shared in an emotional Twitter post that he s been diagnosed with NET, a rare tumour that develops from cells of the neuroendocrine system and grows predominantly in the digestive or respiratory tract - lungs, appendix, small intestine, rectum, and pancreas - it can occur in any part of the body.

Here is more on Irrfan s disease:

What is NET?

A neuroendocrine tumor is characterized by a rapid and abnormal growth that happens in the nerve cells which produce hormones. Hormones control how different organs in the body work.

It is a condition wherein, endocrine cells, the hormone-producing cells of the body, develop a tumor in any part of the body - while it can can grow in lungs or the thymus, or more rarely, in the ovaries, kidneys, or testicles - the most common is lung, intestines, and pancreas.

What causes NET?

A neuroendocrine tumour is quite a rare disease, occurs in less than one per million cases. The exact cause is not known.

The Symptoms-

It can cause a myriad of symptoms, depending on where in the body the NET is.

If it is in your digestive system, it can cause pain or discomfort in the abdomen area that comes and goes. You may feel sick, nauseated, vomited, or there may be a change in how often you pass stools.
If the NET is in the lung, it can cause shortness of breath, chest infections, or you can even have a cough up blood.
Weight loss and loss of appetite may also be some common signs of a neuroendocrine tumour.
Some NETs may overproduce a hormone-like substance called serotonin. This causes a group of symptoms called carcinoid syndrome. Symptoms include wheezing (like asthma), flushing of the skin and diarrhoea.
Who can be affected with NET?

These tumours, depending on the type, are more common in certain age or sex. And few have very strong family history too.
People who have a rare condition called multiple endocrine neoplasia 1 have an increased risk of developing a NET.
Did You Know?

Apple founder  Steve Jobs  died from the same disease in 2011. The tumour affected his pancreas.

Know The Different Types of NET:

Based on the organ that is affected, NET can vary a lot. When the chromaffin cells that produce adrenaline are affected, it is called Pheochromocytoma, and it is related to the stress levels of the body.

When a cell is formed abnormally under the skin and the hair follicles, it is called Merkel cell cancer. This is also called neuroendocrine carcinoma of the skin and the condition can occur anywhere in the body. The commonly occurring places include lungs, gastrointestinal tract, and brain.

The status of the tumour, cancerous (malignant) or noncancerous (benign), decides the survival rate. Often slow-growing and noncancerous, they can invade surrounding parts of the body and at times, turn cancerous and spread across the body. However, you can still choose to live a good quality life with strict modifications in diet and lifestyle. The changes are made after taking into consideration the symptoms of the tumor. The organ where the tumor is formed also matters.

How Is It Treated?

Treatment depends on the location of the tumour, its type, how severe it is and whether it has spread to other parts of the body. Usually, the first treatment choice is surgery to remove the tumour. And, if the NET cannot be removed, your will prescribed with a treatment that will not only relieve the symptoms but will also improve the quality of your life.

How can a NET be prevented?

The first thing you need to do for the prevention of NET is to curb stress. Stress affects the entire body severely.

Lifestyle modifications:

A healthy lifestyle is what you need to stick to if you want to manage its symptoms during the treatment cycle. Your doctor will prescribe you to do exercises at least 4 days a week for a minimum of 30 minutes. You can also try a walk instead of strenuous exercises.

People with carcinoid syndrome may be advised to avoid food or activities that may trigger flushing, such as eating spicy food or drinking alcohol.

Indulge yourself in therapies that help in gaining more positive energy. If you are already affected by NET, eliminate all the sources of stress and get a good night's sleep every day. Join the support groups that make you grow strong and happy. After all, the mind is devised to do miracles when it is full of life and positive thoughts.

Is Irrfan Khan's tumour curable?

Dr Saumitra Rawat, HOD, Surgical Gastroenterology & Liver Transplant, Sri Ganga Ram Hospital, said, "NeuroEndocrine Tumour is an abnormal growth of Neuroendo cells which are present in bodies. When there is an abnormal growth, then it forms a tumor - Normally seen in intestine, pancreas, lung, thyroid and other parts of the body".

On commenting on Khan's case, he said, "It depends on the location of tumour, its size, and what is its mitotic index".

"Depending on where the tumour is localized, you can take it out surgically and the chances of cure are very high", Dr Rawat explained.

Actor Irrfan, who has been diagnosed with the disease is one of the most versatile actors in India, has also made a name for himself in the west, where he has been an important part of critically-acclaimed films such as  The Namesake ,  Jurassic World , and  Life of Pi . At home, the actor has delivered remarkable performances in films such as  Haasil ,  Paan Singh Tomar ,  Maqbool ,  Lunch Box ,  Piku , and the most recent  Hindi Medium .

Irrfan Khan is not just a disarmingly natural actor, but also an endearing human being -- honest and humble to the core. It s time to stand together and pray for him a speedy recovery!

Irrfan Khan - Battle Against Neuroendocrine Tumour!

One of the most significant glands in the male reproductive system is the prostate gland, which is responsible for carrying urine from the bladder. It is located right under the bladder and helps in production of semen which contains sperm.
Prostate cancer is a slow growing form of cancer that is rarely seen in men below the age of 50. It may occur due to both, genetic and environmental factors. Here is a list of measures that can help in preventing this ailment.
Food Intake and Weight: Apart from age, the major factor that contributes to the risk of prostate cancer includes food and weight. Doctors suggest that bringing down your intake of calcium and fat that comes from red meat and excess dairy can help in preventing the onset of this ailment. The calcium intake should not go beyond 1,500 mg per day, which is why doctors will usually ask you not to have supplements. Cooked tomatoes with olive oil as well as cruciferous vegetables including broccoli and cauliflower should be included as a vital part of one's diet, while fish should be taken regularly as it is a source of healthy or good fat like Omega-3 fatty acids. In general, you should have fewer calories which should be matched up with ample exercise so that a healthy weight and balance is maintained.
Stress and Blood Pressure: Stress and anxiety are also major reasons that contribute to the onset of this disease. One will need to see a doctor about high blood pressure, especially the kind that is triggered by stress and causes hypertension. Also, you must control your cholesterol and stay out of depression to ensure that your risk of developing prostate cancer reduces. Also, having these conditions along with prostate cancer makes the survival chances that much lower. So, you must get the right medication and treatment for these conditions as well.
Lifestyle: One will need to quit smoking, that can cause a number of ailments including prostate cancer. Also, drinking alcohol in moderation is required in order to have a healthier lifestyle and cut the chances of developing such ailments.
Screening: While your diet and other aspects may be right, there is still a great chance of developing prostate cancer, especially if anyone in your family has been afflicted with this condition in the past. Therefore, it is recommended to get an annual screening done so that you eliminate the chances of finding it out late, and can check the growth of any anomalies as soon as they take place. Getting regular checks ups done and getting diagnosed for the problem when the earliest symptoms begin to show are both crucial for prostate cancer.


Prevention Of Prostate Cancer

The prostate is a vital organ that located between the penis and the bladder. The prostate is involved in the release of the prostate fluid that keeps the sperm properly nourished. Prostate cancer, as the term indicates, is characterized by the abnormal and uncontrolled growth of cancerous cells in the prostate. Though the incidences of prostate cancer are low in India, necessary precautions and diagnostic steps should be carried out to prevent the condition from jeopardizing our lives.

Prostate screening includes two tests known as the Digital Rectal Exam (DRE) and Prostate-Specific Antigen test (PSA). PSA combined with DRE helps to identify prostate cancer at a very early stage. If any of the tests show an abnormality, a doctor might prescribe an ultrasound such as MRI Fusion or Prostate Biopsy to confirm the diagnosis.

Immediate treatment may not be necessary
For low-risk prostate cancer, doctors often recommend active surveillance that includes periodic blood tests, rectal exam, and biopsies.
Active surveillance helps a doctor to continuously track the growth of cancer cells and the possibility of their spread to other areas of the body.
Surveillance is fit for those who are already suffering from a serious condition or for those patients who are above the age of 60.
A surgical procedure to remove prostate cancer
Surgery is considered when the cancer has metastasized to surrounding tissue and the lymph nodes. There are two kinds of surgeries that a patient can go through- a Robot-Assisted surgery and a Retropubic surgery.
Radical Prostatectomy might have risks involved. It is, therefore, wise to discuss the pros and cons of the surgery with the doctor well in advance.
Understanding the treatment options

Radiation therapy: Radiation therapy involves the use of high-powered and high-frequency energy beams to kill cancer cells. Radiation therapy is often used to shrink the size of the cancer cells. There could be two types of radiation therapy-Brachytherapy and External beam radiation. Radiation therapy too can have its side effects. Doctors prescribe several medicines during therapy.
Hormone therapy: Hormone therapy helps to stop the production of a male hormone known as testosterone. This treatment option includes medication that completely stops the production of testosterone, the medications may also block the flow of testosterone on the cancer cells, and surgery to remove the testicles. Hormone therapy is used in advanced cancer stages.
Chemotherapy: Chemotherapy is a drug that goes into the body and kills rapidly growing and metastasizing cancer cells. It is administered through IV (intravenous), or orally as pill or both. This treatment option is employed when cancer spreads to a remote body location and does not respond to hormone therapy.
Biological therapy: Biological therapy involves the usage of the body s immune system to fight cancer. A type of biological therapy known as the sipuleucel-t is used to treat patients with advanced cancer stage and recurring cancer as well.

Prostate Cancer - How Biological Therapy Will Help?

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