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

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!

It is perfectly normal for women to experience the periodic monthly bleeding cycle. However, if a woman experiences uterine bleeding which is abnormal and dysfunctional, it could be a symptom of infection. Other causes of abnormal uterine bleeding include hormonal imbalance, infection in cervix and cancer of the uterus. Many women can also experience abnormal uterine bleeding during first trimester of pregnancy.

The following are considered to be abnormal or dysfunctional uterine bleeding:

A menstrual cycles occurs between 21 to 35 days, anything shorter or longer than this is abnormal
No period for 3 6 months (amenorrhea) is abnormal
Spotting or bleeding between periods
Spotting or bleeding after intercourse
Bleeding that is heavier or lasts longer than usual
Spotting or bleeding after menopause
What can cause such a situation?

Some of the common causes leading to abnormal bleeding are as follows:

Miscarriage
Ectopic pregnancy
Pregnancy
Cervical or uterine infections
Fibroids
Hormonal imbalances
Problems with blood clotting
Polyps
Polycystic ovarian
Endometrial hyperplasia
Cancer of the reproductive tract
How to Diagnose it?

Most women tend to ignore abnormal bleeding, taking it as something to do with age or hormones. A detailed physical examination and history is done to understand menstrual cycle patterns and family history. In addition, the following would be used.

Ultrasound: The pelvic organs are examined through sound waves to locate the problem area
Hysteroscopy: Through a thin device that is inserted into the vagina, the doctor takes a look at the inside of the organs and identify the cause for the bleeding
Endometrial biopsy: The uterine lining tissue is removed and examined under microscope to look for tissue changes that could be causing the bleeding
How Best to Treat It?

This would depend on the reason for the abnormal bleeding. However, in most cases, combinations of the following are useful in treatment.

Hormone replacement can be done depending on the age and gynecological history, the type and the dose of the hormone would be decided upon. These could be in the form of tablets, vaginal creams, injections, or through an intrauterine device
Non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen are useful in reducing bleeding and controlling cramps during excessive menstrual bleeding.
Antibiotics may be useful if there is infection of the pelvic organs.
Polyps, cysts, cancers, and other growths can be removed via hysteroscopy and sent for biopsy to confirm they are not cancerous.
Endometrial ablation where the endometrial tissue is treated with heat can be used to control bleeding permanently.
Hysterectomy would be done if other forms of treatment have failed. This could depend on their gynecologic history and other considerations as she cannot get pregnant after this.
Do not ignore if you see a change in the pattern of your uterine bleeding. It definitely calls for medical attention and if identified early, can be managed in much simpler ways. 

Abnormal Uterine Bleeding - How Best to Diagnose It?

Bone cancer is a cancerous tumour in the bone, destroying the normal bone tissues. Tumours on bone tissues are not always cancerous or malignant, they are mostly benign. Primary bone cancer is when the malignant tumour begins to form in the tissues of the bones, but when these cancerous cells spread to other body parts like breasts, prostate or lungs, it is called metastatic cancer. Primary bone cancer is less common than metastatic cancer.

Bone cancer can be of three different types:

Osteosarcoma: In this case, the malignant tumour arises from the osteoid bone tissue. This occurs mainly in the upper arm and knee areas.

Chondrosarcoma: In this case the cancerous cells form in the cartilaginous tissues, causing a lot of pain. This occurs mostly in the pelvic area.

The Ewing sarcoma generally arises in the bone but it can also form in the soft tissues. Other kinds of soft tissues affecting cancerous cells are known as soft tissue sarcomas.

Causes-

There aren t many clear defined causes; however, several factors have been identified by researchers.

Osteosarcoma is seen to occur more frequently in people who have been through a high external radiation therapy dose.

In people who have frequently been treated with anticancer medications, children tend to be most affected.

Heredity may be an adding cause, although the percentage of hereditary transfer of cancer cells is very low.



People with hereditary bone defects or implants have a higher chance of acquiring bone cancer.

Symptoms-

The most common and saddening symptom of bone cancer is painful, although not all bone cancers cause pain. Unusual or persistent swelling or pain around a bone maybe a red flag for bone cancer. In case of a situation like this, immediate doctor s opinion is required.

Diagnosis-

Usually, diagnosis of a bone cancer can be made using X-rays; for example, a bone scan, a computed tomography scan, a magnetic imaging procedure positron emission tomography, and an angiogram. Biopsy and blood tests are also helpful in bone cancer diagnosis.

Treatment-

The size, location and stage of cancer, age, and health of the person decide the kind of treatment that should be given to the patient. Various treatment options include chemotherapy, radiation therapy and cryosurgery.

Survival-

The combined survival rate of all sorts of bone cancers is 70%. This percentage may vary with the type of bone cancer and also its stage.

An Overview Of Bone Cancer

It is very common for women to have heavy and painful periods or have a feeling of fullness in the lower abdomen. Although, it may not sound very alarming these could be the symptoms of uterine fibroids. These are the most common types of benign tumours found in women. The fibroids are basically some tissues and muscle cells that grow within the uterus, outside the uterus, or along the wall of the uterus. The fibroids are usually benign and asymptomatic and do not require any treatment unless they cause problems. 

Know the causes 

Though the exact cause of fibroid formation is not known, it is believed that the female hormones estrogen and progesterone have a role to play in their formation. Fibroids are formed only when a woman is producing these hormones and they are not seen in women in non-reproductive age i.e. before starting of menses or after stoppage of menses (menopause). If fibroids are persisting even after menopause or especially if increasing in size then it is an alarming sign. Such a fibroid needs to be taken care of immediately. 

What are the symptoms? 

Fibroids often remain quiet for long periods of time. They cause nonspecific symptoms in the pelvis and abdomen including: 

Fullness in the abdomen 
Low back pain 
Irregular menstruation 
Cramping with menstruation 
Painful sex 
Increased urgency to urinate 
Anemia, leading to tiredness and weakness 
Infertility Diagnosing the fibroids 
When these symptoms are recurrent, it is good to confirm the diagnosis. This can happen with a pelvic exam followed by ultrasound scanning to confirm the size and location of the fibroids. A blood test also may be done to confirm anemia, which is common due to heavy periods.

Treatment Options 

Management of fibroids can range from doing nothing to periodic monitoring to surgical removal. 

If pain and heavy bleeding are the only symptoms, then pain killers like ibuprofen should suffice for symptomatic relief. Anemia, if severe, may require iron supplementation. 
Embolization is an option which shrinks the fibroid, at the same time preserving the uterus. The blood flow to the fibroid is cut off, thereby preventing its further growth. It takes about 1 to 3 hours and requires some bed rest after the procedure. There could be some pelvic pain and vaginal bleeding, which will gradually subside. The fibroids may grow back, but the benefits of keeping the uterus are definitely there. This is suitable in case of single fibroid with specific blood supply. 
The next surgical option is myomectomy, where the portion of the uterus which contains the fibroid alone is removed. This is done in women who still wish to get pregnant and in women who would like to retain the uterus. This can also be achieved laparoscopically( key hole surgery). In such cases, fibroids are cut into small pieces and then removed from the body. This procedure should be done by a doctor specialised in advanced gynecological endoscopy as all this cutting should be done in a bag to avoid any spillage of cells inside the abdominal cavity. This procedure is known as Laparoscopic Myomectomy with In-bag Moecellation. 
In women who have crossed their pregnancy phase, hysterectomy or complete removal of the uterus is advised. In these women, the bleeding and pain may not have subsided even after years of treatment with hormones. The growing fibroids could be pressing on the adjacent organs, causing pressure. This is the only definitive treatment and should be done in women have completed their family and don t desire to be pregnant. 
Myomectomy and hysterectomy may be done laparoscopically or with an open method depending on the overall health, the size and location of the fibroids in the uterus.

Uterine Fibroid - How Removing Them Will Help You?

Any kind of bleeding from the uterus, which is not normal, can be termed as abnormal uterine bleeding. This refers to bleeding between periods or before periods, bleeding after having sex, spotting, abnormally heavy bleeding or bleeding after attaining menopause. If you are suffering from any of these issues, you need to check with the doctor. 

Diagnosis
It is very important to diagnose abnormal uterine bleeding. There are several examinations and tests that have to be carried out, depending on age. For irregular spotting, a pregnancy test can be undertaken in case you think you could be pregnant. If your uterine bleeding is very heavy, a test has to be performed to check blood count. This is done to observe whether you have anemia. An ultrasound test of the pelvic region will also be advised by your doctor to know the cause of the bleeding. Several hormonal tests and thyroid function tests are required as well.

Other diagnostic tests include:

Sonohysterography: When fluid is placed within the uterus and ultrasound images of the uterus are taken. An image of the pelvic organs is obtained.
Hysteroscopy: It can be carried out when a device is inserted via the vagina and enables the doctor to examine the uterus internally.
Magnetic resonance imaging: This is also used to get images of the organs.
Endometrial biopsy:  It involves insertion of a catheter to take out a tissue which is microscopically observed. 
Treatment
There are different types of treatment for abnormal uterine bleeding depending upon factors such as the cause of bleeding and the age of the patient.

Medications: Several medicines are used to treat abnormal uterine bleeding. Sometimes hormonal medicines are used. Birth control pills are also used to improve the regularity of periods. Hormonal infections, vaginal creams and an IUD device releasing hormone can be used. Non steroidal anti-inflammatory drugs are also used to control bleeding. Several antibiotics may also be prescribed.
Surgery: In some cases of abnormal uterine bleeding, a woman has to undergo a surgery for the removal of growth such as polyps and fibroids, which results in bleeding. While some fibroids can be removed via hysteroscopy, others require different techniques for treatment.
Endometrial ablation: It can be undertaken to control bleeding. This mode of treatment aims at reducing the bleeding permanently. In case all treatment methods fail, hysterectomy has to be carried out. This is a serious surgery and after it is performed, a woman does not have periods anymore and will not be able to conceive a child.
Abnormal uterine bleeding is a serious health condition, which may lead to severe complications. Immediate diagnosis and appropriate treatment methods should be undertaken in case of any abnormal uterine bleeding.

Abnormal Uterine Bleeding - 3 Ways to Treat it!

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