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

Rubbery cushions (discs) between the bones (vertebrae) stack up to form the spine. When a nerve between the disc and vertebrae is pressed and inflamed, that condition is called herniated disc. The herniated disc is also referred to as the ruptured disc or the slipped disc. This is caused when the soft jelly is pushed out due to a tear in the exterior. Herniated discs can lead to an irritation of the nerves and result in tremendous pain. It may also cause the arms and legs to become numb and weak. However, some people suffering from this condition may not display any symptoms at all.

Herniated disc generally occur in the lower part of the vertebral column. The herniated disc may also be seen in the thoracic spine or cervical spine. The symptoms of a herniated disc include pain in the legs, feet, or the buttocks, pain in the shoulder blade, tingling of the feet, numbness of the feet and hands, muscle weakness, neck pain or muscle spasm in the neck. Most common causes of herniated discs are aging, excessive weight or lifting of heavy weight.

Prevention of herniated disc

Herniated discs are very commonly found in people who are aged between 35 or 55 years. They are seen more commonly in the men in comparison to the women.
A herniated disc cannot be prevented easily, but there certain things that you can do to reduce the risks. Maintaining the proper techniques of lifting is important. You should not be bending at your waist. You should always bend the knees and keep the back straight. This helps you to use your leg muscles which are very strong to support the weight.
As the saying goes, precaution is better than cure, so here are few precautions that can be taken to avoid herniated discs. Practicing a proper posture can help in reducing the risk of a herniated disc. It is extremely important for an individual to maintain a healthy posture while standing, sitting, walking, and even sleeping. It is imperative that you stretch your muscles when you are sitting in one position for a long time.
Another important thing to avoid is high-heeled shoes, as they are few of the most common causes of a herniated disc. It would be a good idea to go for flat and well cushioned comfortable footwear as they can go a long way in reducing the risk of the herniated disc.
Exercising regularly can go a long way in keeping the muscles of the legs, stomach, and back very strong. You should try to balance your flexibility and strength by exercising regularly. The best form of exercise to avoid herniated disc or ruptured disc is aerobic exercise.
It is true that as you start to age, the chances of getting a herniated disc increase significantly. However, if proper precautions are taken, the stress put on the spine can be effectively reduced, thereby eliminating the risk of a herniated disc. 

Herniated Disc - Is There A Way It Can Be Prevented?

The sciatic pain caused due to a lumbar herniated disc can radiate down your legs and may make you immobile. It is quite common for a herniated disc to press against a nearby nerve and inflame, leading to pain radiating along the length of the affected sciatic nerve. For getting relief from lumbar herniated disc pain, you need to become active. Daily hamstring stretches are considered to be an effective way to tackle such pain if you do them regularly. 

Here are three important hamstring stretches which will help you in strengthening your hamstring muscles:

Seated chair stretches: This stretch is perfect for people whose mobility is limited or for those who have unusually tight hamstrings. It is carried out in a sitting position. While performing this stretch, you have to sit on a chair with another chair placed across. By resting one foot on the ground and the other on the second chair, you need to straighten your back and lean forward over the leg which is extended. Once you feel a stretch in the upper and rear thigh, you should be in that position for at least 30 seconds. You should switch legs and repeat the stretching exercise thrice for each leg.
Towel hamstring stretch: If you like stretching while lying down, this stretch is an ideal option for you. For performing a towel hamstring stretch, you have to lie down on the floor and keep one leg flat. Tighten your abdominal muscles while you lift the other leg and keep it straight. You should wrap a belt around the elevated leg s instep and use it for pulling back the leg towards you. Hold the position for around 30 seconds when you feel a stretch.
Wall hamstring stretch: This stretch is for people who find the towel hamstring stretch hard to execute. For such people, extra stability can be attained by taking help of a solid surface such as a door jamb or a wall. You can rest the raised leg against the wall for support. You need to lie on the floor near a wall corner and leave one leg straight while placing the other against the wall. Your hips should be on the floor.
While you do stretches of any kind, you should only stretch as far as you are comfortable. You must not stretch to a point which causes pain. These hamstring stretches are quite safe, but you should avoid them in case of any sudden, acute pain.

Lumbar Herniated Disc Pain - 3 Hamstring Stretches for it

The treatment options for bone cancer depends on the type of cancer one is suffering from, the general health of the patient, the stage of cancer and the general preference of the patient. Different treatment options are designed for different types of cancer, based on the diagnosis. Each treatment responds in a different way. An oncologist decides the treatment options considering all the factors mentioned above. For instance, some cancer is best suited to surgery, while some cancer needs radiotherapy or chemotherapy to curb them. In many cases, all three modes of treatment might be required to tackle the growth of the cancer cells.

Surgery:
The goal of surgery is to eradicate the cancer cells in totality along with some surrounding healthy tissues. This involves special techniques to remove a tumor in one piece. Following are the types of surgeries that are available:

Removing the cancer cells sparing the limb: At the very first sight, the surgeon tries to understand whether it is possible to separate cancer cells from the tissues and the nerves. If the same is possible, the surgeon tries to save the limb while getting rid of the cancer cells. For the sake of safety and to ensure that the surgery is effective, the surgeon removes some of the healthy bone from the body and may replace the same with tissue from other parts of the body. To achieve this, a doctor might seek the help from of a bone bank or use a special metal prosthesis.
Surgery that does not involve the limbs: If the bone cancer does not involve the legs and the arm, surgeons can remove the affected bone along with some healthy bone from the surrounding areas. Cancer of the ribs and the spine are good examples of this type.
Surgery that affects the limb: Bone cancer that has spread to a significant extent and is strategically located in such areas that it is very difficult to remove, requires amputation. While this form of treatment is being increasingly discouraged by the wider medical community, it still does exist. In such cases, patients are fitted with artificial limbs and trained to do their job without the use of natural limbs.
Chemotherapy:
This is a form of drug treatment that uses powerful chemicals to kill cancer cells throughout the body. This medication is mostly given through an IV and the medication kills whatever cancer cells it comes across. 

Radiation therapy:
Radiation therapy involves the usage of special X-ray beams that have high power and can kill cancer cells. The patients are required to lie on a table, while a machine moves around the affected area and treats it with high energy X-rays, thereby killing the cancer cells. Radiation therapy is often used in conjunction with chemotherapy to reduce the size of a tumor before operating on it.


Bone Cancer - Know The Treatment Options!

The human skull is composed of several plates and pieces of bones. The roof of the skull is the top of your head. The base of the skull is, however, a complex area. It consists of 5 bones. These bones are also linked to your eye socket, the cavity of the nose, the sinuses and the bones of the inner ear. Surgery through the skull base can be quite complicated as quite a few nerves, blood vessels and opening of the spinal cord pass through this region.

When does Endoscopic Skull Based Surgery become necessary?
An endoscopic skull based surgery is performed to remove tumours of the brain. The tumour might be benign or malignant - this procedure is effective against both. This surgery can also be performed to cure any abnormality on the underside of the brain, the upper vertebrae of the spinal cord or the base of the skull.

Other conditions that may necessitate an endoscopic skull base surgery are -
  Cysts in the brain
  Swelling caused by infections
  Pituitary tumours
  Meningioma
  Chordomas
  Trigeminal neuralgia
  Cerebrospinal fluid fistulas
  Cerebral aneurysm

What to expect during this Surgery?
Since the base of the skull is a complicated region, surgery requires a delicate approach. That is why endoscopy is used. It is a minimally invasive procedure.
Right before the surgery, you will be put under general anaesthesia. Your skull has two natural openings- the nose and the mouth. Usually, the surgeon inserts the minute surgical instruments through the nose or the mouth. Sometimes, a tiny hole is drilled right above the eyebrows. A tiny camera mounted on a lighted tube will be led into your brain through the cavity that will send a live feed from the inside. This will direct the surgeons who will gently remove the growth or fix the abnormalities.
A team of doctors with different specializations such as ENT, radiology, neurosurgery come together to perform this surgery.

Complementary Procedures -
Depending on the kind of tumour being removed or the stage it was detected in, you might have to undergo any of the following in addition to endoscopic surgery-
  Chemotherapy
  Radiation
  Particle Therapy
  Proton Beam Therapy

Post Surgery Care -
After the surgery, you will have to stay in the clinic or hospital for a number of days where your progress will be constantly monitored. You will require therapy and undergo MRI scans.
Endoscopic skull base surgery is very effective in dealing with tumours and abnormalities of the brain or the upper spinal cord. Keep your family and friends around you during the recovery phase as their love and support will help you get back to your normal lifestyle in no time.

Know More About Endoscopic Skull Base Surgery Through Brain!

Breast cancer begins when cells in the breast start to get out of control. These cells are mostly in the form of a tumor that can be regularly seen on an x-ray or felt as a lump. The tumor is dangerous (malignant) if the cells attack the surrounding tissues or spread to far off zones in the body. Breast cancer happens mostly in women, yet men can get it, as well.

This is how breast cancer can spread:

Bosom cancer can spread through the lymph framework
The lymph framework includes lymph nodes, lymph vessels, and lymph liquid found all throughout the body
Lymph nodes are little, bean-shaped accumulations of immune system cells that are connected by lymph (or lymphatic) vessels. Lymph vessels resemble little veins, with the exception of that they transport a liquid called lymph (rather than blood) far from the breast
Lymph contains tissue liquid, waste items, and immune system cells. Breast cancer cells can enter lymph vessels and start to develop into lymph nodes
A large portion of the lymph vessels of the breast deplete into the:

Lymph nodes under the arm (axillary hubs)
Lymph nodes around the neck bone (supraclavicular and infraclavicular lymph hubs)
Lymph nodes inside the neck close to the breast bone (inner mammary lymph hubs)
Following are some of the causes of breast cancer:

Hormones play a part in creating breast cancer disease; however exactly how this happens is not completely known
Ordinary breast cells get to be distinctly carcinogenic in view of changes (transformations) in DNA
Yet, most DNA changes identified with breast cancer are gained in breast cells during a woman s life as opposed to having been acquired
Qualities that accelerate cell division are called oncogenes
Tumor silencer qualities are typical qualities that back off cell division, repair DNA oversights, or advise cells when to bite the dust
Certain acquired DNA transformations (changes) can drastically increase chances for building up specific growths and are in charge of a large number of tumors that keep running in few families
Some of the treatments of breast cancer include:

Health alterations: Body weight, physical action, and eating routine are all connected to breast tumor, so these may be territories where you can make a move.
Restorative alternatives for women at expanded hazard: For women who have certain hazard components for breast growth, for example, a family history; various restorative alternatives may counteract breast cancer.
Medications to lessen hazard: For women at expanded danger of breast cancer, medications, for example, tamoxifen and raloxifene, can reduce the hazard. However, these medications can have their own dangers and symptoms.
Preventive surgery: In case that you have a solid family history of breast cancer, you can talk with your specialist about hereditary testing. This test addresses changes in qualities that increase the danger of breast cancer; for example, the BRCA qualities. In case you have a hereditary change from a family with a transformation, however, have not been tried, you could consider surgery to bring down your danger of tumor.

Breast Cancer - Important Things You Must Be Aware Of!

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