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

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

Many women develop uterine fibroids by the time they hit the age of 50 years and above. These are non-cancerous growths that may occur in the uterus. Most women go through severe bleeding and pain as well as discomfort as a result of these fibroids. Age, family history of the same condition, obesity or being overweight, eating habits and even ethnicity play a large role in deciding the risk of each individual patient. These fibroids can grow in the submucosal, intramural and subserosal areas.

Following are the common side effects of uterine fibroids:

    Frequent urination: Due to the pressure of the fibroids on the uterus, the patient may experience a constant feeling of fullness in the lower pelvic area of the body, which may lead to frequent filling of the bladder. This gives rise to frequent trips to the washroom for urination. 
    Heavy Bleeding: Severe bleeding is one of the most common causes of the presence of these kinds of fibroids. The patient may experience a lot of bleeding during menstrual periods, as well as pain and cramps the rest of the time. The periods will also be very painful when there are fibroids in the uterus or the uterine lining.
    Painful Intercourse: It is a well-known fact that any kind of infection or growth as well as sores and other such ailments can lead to vaginal dryness as well as pain during sexual intercourse. This is true for uterine fibroids as well, which can lead to severe pain during sexual activity. These fibroids can also give rise to pain in the lumbar or lower back region.
    Abdomen Swelling: The abdomen may go through significant swelling in such a condition and the patient may even look like she is pregnant. The growth can push the shape of the abdomen outwards and create a full feeling.
    Pregnancy Complications: The presence of uterine fibroids can give rise to several complications during pregnancy and even after child birth. One of the most common problems in this case is bleeding, followed by more severe outcomes like miscarriage. The women suffering from uterine fibroids are at greater risk of undergoing a caesarean section for the delivery of the baby. The baby may also be born breech and a premature delivery may take place. 
    Infertility: This is also a rare side effect of the uterine fibroids and is generally seen only in very severe cases. 
    Cancer: Only one in every 1000 cases might transform into malignant tumours. These uterine fibroids are generally known to be non-malignant. 

Any symptoms must be reported to a gynaecologist at the earliest to avoid any serious complications.

Common Side Effects of Uterine Fibroids

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!

Dilation and curettage procedure which is commonly referred to as D&C is a minor surgical procedure where the cervix is dilated while a special instrument is used for scraping out the lining of the uterus. It is important to know what you can expect before, after and during the process so that you can stay ahead of unnecessary worries and help the process to be smooth and fruitful.

When do doctors recommend dilation and curettage process?
You may be required to undergo the dilation and curettage procedure for one of many reasons. It can be used for removal of tissues in the uterus during or after an abortion or miscarriage or to remove little pieces of placenta after delivery. This process aids in preventing infection as well as heavy bleeding. On the other hand, it can help in diagnosing and treating abnormal uterine bleeding including polyps, fibroids, hormonal imbalances and even uterine cancer. A sample of the tissues in the uterus is tested under a microscope to check if there is any abnormal cell present.

What can you expect during the dilation and curettage process?
The D&C procedure is a minor one and takes about 15 minutes even though you will have to spend about 4 to 5 hours in the healthcare facility. Before the procedure, your doctor would check complete history, and at this point, you should tell your doctor if you suspect that you are pregnant, you are sensitive to latex or any medicines or if you have a history of bleeding disorders. You will then be given anesthesia so that you don t feel any pain or discomfort during the procedure. Before this procedure, you will have to empty your bladder.

The D&C procedure comprises two main steps, dilation, and curettage.
Dilation involves opening of the lower part of the uterus or the cervix for allowing insertion of a slender rod. This is done to soften the cervix so that it opens and allows curettage to be performed. Curettage involves scraping of the lining and removal of the uterine contents with the help of a spoon-like instrument known as a curette. This may cause some amount of cramping, and a tissue sample would be taken out for examination in the laboratory.

After the completion of the procedure, you may experience slight bleeding and cramping. In some rare cases, adhesions or scar tissues may start forming inside the uterus, and this condition is termed as Asherman s syndrome which can cause changes in the menstrual cycle along with infertility. This problem, if arises, can be solved with the help of surgery and therefore, you should report any abnormality in your menstrual cycle to your doctor.

Dilation & Curettage Process - What To Expect From It?

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

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