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

Collectively grouped under the Ewing sarcoma family of tumors, Ewing's sarcoma is the second most common primary bone cancer occurring predominantly in children and in adolescents. Very rarely is it experienced in adults above the age of 30.

Typically forming in the bones of the chest, pelvis, head, back or trunk and in the long bones of the arms and legs, Ewing's sarcoma is believed to originate in certain kinds of primitive cells. When it begins to affect similar kind of cells found outside the bone, it is usually called an extraosseous Ewing's sarcoma.

Causes
1. Similar to all types of Ewing tumors, Ewing's sarcoma is generally caused by an alteration in a certain cell compelling a gene named EWS found on chromosome no. 22 to move over to a DNA section on any one of the surrounding chromosomes resulting in the activation of the EWS gene.
2. While it is not a hereditary condition, it usually occurs after childbirth, but no substantial evidence has been found as to why it happens so.

Symptoms
Symptoms of Ewing's sarcoma may include:
1. Swelling and pain especially in the arms, legs, back, chest or pelvis
2. Swelling accompanied by joint immobility
3. A bone breaks having no apparent cause
4. Swelling which may or may not be accompanied by a warm, tingling sensation
5. Fever resulting from unknown causes
6. Lumps or bumps which do not subside over time
7. Abnormal weight loss
8. High levels of fatigue
9. Tumors which have spread over to the lungs may cause shortness of breath
10.Tumors spread over to the spine may cause weakness or even paralysis.

Because the symptoms of Ewing's sarcoma can hardly be distinguished from symptoms caused by other infections or injuries, an early diagnosis is absolutely necessary for a successive treatment.

Causes and Symptoms of Ewing's Sarcoma

Cancer is the abnormal, uncontrolled growth of cells in a particular body part. With continued growth, pieces of this tissue travel through the blood to different body parts and continue to grow in the new area. This is known as metastases. Breast cancer is one of the most common forms of cancer and affects about 1 in 8 women in the USA. Read on to know more details of breast cancer   breast anatomy, causes, symptoms, risk factors, detection, prevention, and of course treatment.

Anatomy: The main function of the breast is lactation through its milk-producing tissue that are connected to the nipple by narrow ducts. In addition, there is surrounding connective tissue, fibrous material, fat, nerves, blood vessels and lymphatic channels which complete the structure. This is essential to know as most breast cancers develop as small calcifications (hardened particles) in the ducts or as small lumps in the breast tissue which then continues to grow into cancer. The spread can happen through lymphatic or blood flow to other organs.

Warning signs/symptoms: The following are some symptoms that need to be watched out for if you have a predisposition to breast cancer.

    A lump in either of the breasts or armpits
    Change in size, shape, or contour of either breast
    Redness of your breast or nipple
    Discharge of clear or bloody fluid
    Thickening of breast tissue or skin that lasts through a period
    Altered look or feel of the skin on the breast or the nipple (dimpled, inflamed, scaly, or puckered)
    One area on the breast that looks very different from the other areas
    Hardened area under the breast skin

Either one or a combination of these should be an indication to get a detailed checkup done. Early diagnosis results in controlling the disease with minimal treatment and reduced complications.

Causes and risk factors: The exact cause for breast cancer is yet to be pinned down. However, risk factors are clearly identified, and women with risk factors need to watch out for warning signs.

    Family history: Of all the risk factors, the family history is the most important. Breast cancer runs in families, and if there is a first-degree relative with the breast cancer, the chances of developing it are almost double. Two genes BRCA1 and BRCA2 are the carriers of the disease, and this testing can be done in women to identify if they are at risk.
    Family history of other cancers: Even if there is no breast cancer, if there are other cancers that run in the family, watch out.
    Age: Women over 50 are at higher risk of developing breast cancer.
    Race: Caucasian and Jewish women are at higher risk of breast cancer than African-American women.
    Hormones: Greater exposure to the female hormone estrogen increases the chances of developing breast cancer. Women who use birth control pills for contraception and hormone replacement after menopause are at a higher risk of developing breast cancer.
    Gynecologic milestones: Women who have abnormal menstrual milestones need to watch out. These include those who attain menarche before 12 years of age, get pregnant after 30, attain menopause after 55, and have menstrual cycles shorter than 26 days or longer than 29 days.
    Obesity and alcohol abuse are also likely to increase a woman s chances of developing breast cancer.

Stages: Starting from stage 0, higher stages indicate advanced disease.

    Stage 0: The growth which has begun in the milk-producing tissue or the ducts has remained there (in situ) and not spread to any other area, including the rest of the breast.
    Stage I: The tissue slowly becomes invasive and has begun to affect the surrounding healthy tissue. It could have spread to the fatty breast tissue and some breast tissue may be found in the nearby lymph nodes.
    Stage II: The cancer at this stage grows considerably or spreads to other parts. There are chances that cancer may grow and also spread.
    Stage III: It may have spread to the bones or other organs but small amounts are present in up to 9 to 10 of the lymph nodes in the armpits and collar bones which makes it is difficult to fight.
    Stage IV: The cancer is widespread to far-flung areas like the liver, lungs, bones, and even the brain.

Screening: This is one of the most effective ways to identify the disease in its early stages. This will help in controlling cancer from spreading with minimal treatment.

    Self-examination: A thorough self-examination to look for changes in terms of shape, size, colour, contour, and firmness should be learned by all women. Watch for any discharge, sores, rashes, or swelling in the breasts, surrounding skin, and nipple. Examine them while standing and when lying down.
    In most women, annual screening mammograms are advised after the age of 40. However, in women who have a strong family history or genetic makeup, it is advisable to have screening mammograms starting at age 20 every 3 years and then annually from the age of 40.
    Women in high-risk categories should have screening mammograms every year and typically start at an earlier age.
    Ultrasound screening can also be given in addition to mammograms.
    Breast MRI is another way to screen for breast cancer if the risk is greater.

Breast Cancer Prevention: Now that there is so much awareness about causes and risk factors, there are definitely ways to prevent or delay the onset of the disease.

    Exercise and a healthy diet with reduced amount of alcohol are definitely effective in minimising the chances of developing cancer.
    Tamoxifen is used in women who are at high risk for breast cancer.
    Evista (raloxifene) which is used to treat osteoporosis after menopause. It is also widely used in preventing breast cancer.
    In high-risk women, breasts are surgically removed to prevent the development of cancer (preventive mastectomy).

Treatment: As with all cancers, treatment would depend on the stage at which it is identified and include a combination of chemotherapy, radiation, and surgery. As noted earlier, if you are at risk, look out for warning signs as early diagnosis is the key to maximum recovery.

Breast Cancer - Know More to Say 'No' More!

Breast cancer is a disease in which malignant (cancer) cells form in the tissues of the breast. It occurs in both women and men, although breast cancer in men is rare.

Risk factors:

Lack of physical activity
Alcohol consumption
Advancing age
No childbirth or no breastfeeding
Family history of breast cancer
Early menarche (< 12 years of age) or late menopause ( > 55 years of age)
History of ovarian cancer or endometrial cancer
History of benign breast conditions (e.g. atypical hyperplasia) or lobular carcinoma in situ
Receiving hormonal replacement therapy (HRT)
History of receiving radiation therapy to the chest before age of 30
More importantly, you can lower your risk of having breast cancer by the following measures:

 Have regular physical activities, do at least 150 minutes of moderate-intensity aerobic physical activities per week (e.g. climbing stairs or brisk walking)
Avoid alcohol drinking;
Maintain a healthy body weight and waist circumference - aim for a body mass index (BMI) between 18.5 and 22.9, and a waist circumference of not more than 80cm for women; and
Have childbirth at an earlier age and breastfeed each child for longer duration factors include:
What are the common symptoms of breast cancer?

The symptoms of breast cancer may not be easily noticed at an early stage. Any of the following changes in the breast can be a symptom of breast cancer:

  Breast lump;

  A change in the size or shape of the breast;

  A change in skin texture of the breast or nipple (e.g. red, scaly, thickened or  orange-skin  appearance);

  Rash around the nipple;

  In-drawing of the nipple;

  Discharge from one or both nipples;

  New and persistent discomfort or pain in the breast or armpit; and

  A new lump or thickening in the armpit

What is breast cancer screening? Should I screen for breast cancer if I do not have any symptom?

Screening means examining people without symptoms in order to detect disease or fi nd people at increased risk of disease. It is often the fi rst step in making a defi nitive diagnosis. For breast cancer screening, its purpose is to fi nd women who have breast cancer, before they have any symptom, in order to offer them earlier treatment.

Mammography is widely used as a screening tool. It is an X-ray examination of the breasts. During mammography, the breast is pressed between 2 plates to flatten and spread the breast tissue, in order to obtain a clear image. Some women may find it uncomfortable or painful but the discomfort is usually short lasting. Mammography screening is safe in general and only a very small dose of radiation is used in the procedure. One in 5 female breast cancer patients may be missed by mammography.

Prevention and Screening for Breast Cancer: Information for women and their families

Brain injury can happen as a result of trauma, infection or degeneration with old age. Whatever be the reason, injury on the head can result into brain dysfunction and should be given required medical diagnosis. In these cases, occupational therapy can be a major help.

It helps in improving health, providing rehabilitation and educational service to enable people to participate in things they are interested in and manage their daily activities. Occupational therapy can be used to manage issues relating to memory, organization and attention span, behavior and emotion control, safety issues and issues which contribute to society. Depending on expectations, different therapies can be sought. Read on to know a little more about how occupational therapy can help adults with brain injury. 

The person's skills and what they want to do are to be assessed and accordingly a daily plan that can be easily followed is made. Where possible, use technology like smart phone or voice recorder to manage this plan. The therapist can train the person to use these tools, review progress and make changes as necessary.
The therapist will also teach ways to do things on their own like cooking and small shopping, so they become independent and are therefore less frustrated.
Patients in need of anger management, the therapist will help them to identify what induces anger or frustration and support in managing those before it turns into actual anger. This will help the person relax and be more positive.
This could also be done using small roleplays, wherein they are taught ways to respond and be more relaxed and calm.
If you are keen on participating in social events or volunteering opportunities, then the therapist can recommend options for you based on your areas of interest. The therapist can also work with the identified organization (school, NGO, or workplace) to inform them of the kind of support required by you. Work behavior and social behavior can be taught to help the affected person succeed.
If the affected person happens to be alone, then they need to be assessed for ability to judge (e.g., self-awareness, impulsivity, and reliability), even while doing daily activities like bathing and dressing. Driving is permissible only if cleared for it by the therapist.
The home needs to be assessed for safety. You may have to make some safety modifications, for instance replace power tools with hand tools. Else, shared housing options, where independence and having someone close by is possible, should be evaluated.
So, with a brain injury, not all is lost. Occupational Therapy can definitely help restore function to a large extent, so use it to reap maximum benefits.

Adults With Brain Injury - Know How Occupational Therapy Can Help You!

Kidney cancer or renal cancer is when kidney cells grow uncontrollably and form a tumour. Kidney cancer often begins in the tubules (tiny tubes in the kidneys). The prognosis may depend on the stage of the kidney cancer.

Different Stages of Kidney Cancer
The TNM system helps to categorize each stage of the kidney cancer.
Tumour (T)   Describes the size and location of the tumour.
Node (N)   Describes the spread of cancer to lymph nodes.
Metastatis (M)   Describes the spread of cancer to other body parts.

These results combined with the five stages (0 and 1 to 4) can help to identify the right treatment option for every patient. Zero stage describes no cancer presence. For instance  
Stage 1   Here the tumour is confined to kidneys and its size is smaller than 7 centimetres. (T1 or T1, N0, M0)
Stage 2   Here the tumour is confined to kidneys and its size is more than 7 centimetres. (T2)
Stage 3   Here the tumour is in kidneys or blood vessels or fatty tissues but also a lymph node; cancer spreads to major veins but doesn t extend beyond renal or Gerota s fascia (connective tissues surrounding adrenal glands and kidneys). (T3)
Stage 4   Here the cancer is in the fatty tissues surrounding kidneys and adjacent lymph nodes; has spread to other nearby organs and beyond renal fascia. (T4)

Treatment and management of kidney cancer
Once your doctor has determined the staging of your kidney cancer, a treatment plan can be formulated for you.

Surgery
Simple nephrectomy removes the affected kidney.
Radical nephrectomy is a common surgery for kidney cancer. It removes all affected parts such as the kidneys, adrenal gland, lymph nodes and surrounding tissues.
Partial nephrectomy is for small tumours and removes the kidneys and the surrounding tissues.
Interventional radiology: This is a surgery aided by real-time images. An advanced surgery using a nano knife is minimally-invasive and is effective for inoperable kidney tumours.
Targeted therapy: Drugs target specific tumour cells and destroy them.
Immunotherapy: Used for kidney cancer that has spread to other organs, this therapy may use different types of drugs to either help immune cells find cancer growth or regulate the immune system activity to stop or slow cancer growth.
Arterial embolization: It is a procedure to stop blood supply to the kidney tumour, in order to shrink it in size prior to surgery.
Cryotherapy: This procedure involves using extreme cold to kill cancer cells.
Chemotherapy is not very effective for treating kidney cancer. Talk to your doctor about all possible treatment options for your cancer. You can lower your risk of kidney cancer by eating healthy, maintaining your ideal body weight and managing your blood pressure.

Stages Of Kidney Cancer - How They Can Be Managed?

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