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Cancer that originates in the bones of a human body is referred to as bone cancer. Any bone could come under the threat of this disease, but generally the longer bones of your body, so to say the bones of your limbs, are at a greater risk.
A few factors that might push you an inch closer to bone cancer are:
- Genes could jinx your health: A few typical genetic syndromes could increase a person's chances of contracting bone cancer. These syndromes could have been active in any person belonging to your lineage. One such syndrome is Li-Fraumeni.
- Treatment for one kind of cancer can make you prone to some other kind: Radiation affects your bones adversely. A patient of breast cancer might be undergoing radiation therapy that further increases his or her risk of contracting bone cancer in future.
- Paget's disease can have unfavorable implications: Paget's disease is a disease that affects elderly people. This condition, if left untreated, can turn into bone cancer at a later stage.
Several symptoms of bone cancer can be found below:
- Sudden loss of weight: If you lose a considerable amount of weight in a few weeks time without having made any effort at all, you should probably be worried about the health of your bones. Bone cancer can result in sudden and unintentional weight loss.
- Unexpected bone fracture or breakage: Cancer of the bones is known to gnaw at the strength of your bones. Weakened and diseased bones can break or get fractured very easily. An unexpected fracture should not be overlooked so as to prevent chances of anything more harmful.
- Long spans of unyielding exhaustion: Constant fatigue and sleepiness might be hinting at a more serious underlying problem. The bones in your body hold you together; cancerous bone cells can make you feel exhausted without much exertion as your bones lose their inherent potency.
- Persistent pain in the bones: Excruciating cramps or pangs of stinging pain in a person's bones either continuously or at odd hours, could be indicative of bone cancer. Such instances require the advice and guidance of an experienced oncologist.
- Bone swelling: The area affected by bone cancer can grow big and tender or the bone itself can swell up.
I have diagnosed with infiltrating ductal carcinoma, NOS, in right breast (in biopsy report, triple negative (ER-negative, PR-NEGATIVE, HER 2-NEGATIVE). The tumor measures 4 cm* 3 cm mammographically. After giving 3 no. Of chemo My doctor suggest me for modified radical mastectomy. Please tell me if I go for complete breast removal & subsequent chemotherapy Radiotherapy is must or optional?
L4-l5 and l5-s1 between disk problems years-44-women. Please give advise operation after disk moving
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.
Most commonly known as a military neck a straight or forward curve of the neck is abnormal and may cause an unkind progression of symptoms leading ultimately to cervical disk degeneration.
Reversal of cervical lordosis explained
The anatomy of the neck features a lordotic curvature in its typical and healthy state. This means that the cervical region has a gentle curvature with the open end of that curve facing the rear of the body. The base and top of the curve will be further posterior than the mid point, which will be further anterior.
When the lordosis is straightened, the neck becomes more upright and linear. This is more common than the next progression of atypical curvature, which is the subject of this article.
Actual reversal of curvature means that part or all of the cervical spine develops a kyphotic profile, with the open end of the curve facing anteriorly. Usually, this reversal is extremely mild, but is still very abnormal. What we now see is the middle of the curve being positioned posterior to the top and bottom.
In essence, picture the letter c and now turn it backwards: This is the shape of a reversed cervical lordosis.
Reversal of cervical lordosis causes
The spinal curvature in the neck is constantly in flux to some degree.
Congenital conditions and developmental conditions can have lasting effects on the natural degree of curvature typically demonstrated from patient to patient. These circumstances may be explainable due to injury or degeneration, or may be idiopathic:
Scoliosis can affect the normal lordotic curvature in the neck.
Cervical spondylolisthesis is a major source of reversed lordotic curvature.
Severe disc pathologies can facilitate a gradual loss or reversal of cervical lordosis.
Vertebral irregularities, such as wedging, can definitely contribute to lordotic alteration.
Traumatic injury, including vertebral fracture, can create the ideal circumstances for a reversal of lordosis to take place.
Severe neck muscle spasms can actually reshape the spinal curves, although these are usually temporary expressions and not actual structural conditions.
Effects of reversal of cervical lordosis
The neck is designed to curve in order to balance the spine, absorb stress, distribute force and provide proper movement of the head. When this curvature is diminished or reversed, symptoms may result, although this is not an inherent part of any altered lordotic condition.
Patients may experience stiffness and tension in the neck. Pain may be present and may even be severe in rare cases. Neurological dysfunction is possible in extreme cases, since the neuroforamen might not align properly, thereby causing a cervical pinched nerve.
In the worst circumstances, central spinal stenosis in the neck might affect the viability of the spinal cord, possible enacting the most dire of symptoms throughout the body.
Patients will also be more prone to injury, since the normal shock absorption qualities of the typical curvature have been lost.
While all these effects are certainly possible, they are not usual. In fact, a great majority of patients have minor symptoms or even no symptoms at all from mild reversed lordotic curvatures.
The pathology leading to a neck curve reversal (cervical kyphosis shown below right) may be inspired by a multitude of conditions as follows:
Post head injury
Poor sitting/working postures
Congenital spinal curvatures
Degenerative cervical discs (a form of osteoarthritis that can either be the cause of or the result of a cervical kyphosis)
Compression fracture of vertebral body
Infection of the cervical spine
Anatomy: straight vs. Curved
I've always heard that it was good to stand up straight.
stand upright, stick your chest out and hold your shoulders back! otherwise you're going get widows hump.
Are these expressions as familiar to you as they are to me? one might think that having a curved neck goes against what we heard from parents and teachers as we were growing up, but the reality is that there is a little bit a truth in both. Maintaining good posture throughout our lives is crucial to both the health of our spine and vital organs. On the contrary, a special type of curve called a lordosis is a good thing, both in the neck and lower back.
When we look at a person from the back their spine should be truly straight, so that the left and right sides of one's body is symmetrical. However, when we view a person from the side, the front and back of their body is different and this is reflected in a coinciding curvature of the spine. Both the lower back and neck are hollowed out (concave) and the mid or thoracic spine is protrudes (convex). Thus there is an alternation of curves functioning to provide stability, shock absorption and aid in propulsion. A straight spine would be very stiff and not flexible. Imagine the plight of a pole vaulter with an inflexible pole.
Nature's design of our spine and rib cage facilitates breathing and offers protective and supportive framework for vital organs. Spinal disks are shock absorbers and because they are in the front of the spine, lordotic curvatures keep them from having to bear weight. Kyphosis or loss of such curvatures bears weight upon the disks, leading to their ultimate degeneration. This process of deterioration is a form of osteoarthritis and in the spine is known as degenerative spondylosis.
Although most physiotherapists or conservative orthopedists can recognize a cervical curve reversal upon viewing the patient's posture, a definitive diagnosis may be obtained via a standing lateral (side view) x-ray of the neck. Cause can often be determined by corroborating a comprehensive history, a thorough examination, x-rays and questions about sleep, work and lifestyle.
In my professional career I found that the majority of young adults presenting with cervical kyphosis either had a whiplash or were stomach sleepers from an early age. For desk jockeys 40-60 years of age, many hours of sitting with their head flexed forward almost dictates the fate of developing kyphosis. In prior years I considered cervical kyphosis a job hazard for the careers of accountants, attorneys and often teachers because of years spent with their head in a book or paperwork. However, the digital age offers some relief in that respect. A well-planned, ergonomically-friendly office can do wonders for protecting the spine in the sedentary worker.
Treatment for cervical curve reversal (kyphosis)
During my chiropractic practice I had the opportunity to note a good percentage of correction toward a more normal lordosis (noted on x-ray) for 70% of patients under my care. This was almost always consistent with those patients that followed all recommendations and were model participants in their own care. Here is the recommended treat plan:
Spinal manipulation of stiff and fixated spinal segments by a qualified physio
Flexibility exercises for flexion and extension of cervical spine
Resistance exercises for flexors and extensors of the neck
Learn the Alexander technique for maintaining good posture (hint: the basic philosophy is to sit and stand like you were hanging by a string from the vertex of your skull. Liken it to a puppet on a string).
Elimination of stomach sleeping
Avoid standing on your head, although some yoga postures may be beneficial
Use of orthopedic neck pillow while sleeping.
I have back pain L4. L5 problem fast in 5 years. I want to reduce pain with out operation is possible. Please Inform
Sir I am FROM CHENNAI having back pain when mri scanned impression as follows Early lumbar spondylosis. Mild disc bulge with focal posterocentral and bilateral postrtolateraldisc at l3_ 4 disc level causing thecal sac ibdentation and bilatrral mild beural foranimal narrowings (L>R) MILD ligamentum flavum hypertrophy at L3_4 & L4_5 disc level causing mild posterior thecal sac indention Disc desiccation in L4_5 & L5_ S1 DISC LEVEL AS LOSS OF HYPERINTENSE SIGNAL ON T2W1 PLEASE HELP I REPLY ME POSITIVELY
I have diagnosed with infiltrating ductal carcinoma, NOS, in right breast (in biopsy report. Please suggest me what is my treatment option.
I am 38 years old man having back pain lasting for 20 days from mild to severe in left hip side. In consultation to orthopedic surgeon and after MRI one doctor told me the disease sciatica and another its slip disc. MRI of LS SPINE report says the result of AP diameter L1-L2=15, L2-L3=08, L3-L4=15, L4-L5=10 , L5-S1=09 Impression: 1) Degenerative DISC DISEASE with generalised disc bulge at L3-L4. Please tell.
I am 20yr old male. I had an accident 2 years ago & I had suffered severe back pain. My spinal cord's disc had moved a bit so that I have pain in my back till now. What should I do for this?
I am suffering from severe backache problem. From last three days. Like slip disk. What should I do? suggest please.
Test to screen for breast cancer:
Mammography is the most common screening test for breast cancer. A mammogram is an x-ray of the breast. This test may find tumors that are too small to feel. A mammogram may also find ductal carcinoma in situ (dcis). In dcis, there are abnormal cells in the lining of a breast duct, which may become invasive cancer in some women.
Mammograms are less likely to find breast tumors in women younger than 50 years than in older women. This may be because younger women have denser breast tissue that appears white on a mammogram. Because tumors also appear white on a mammogram, they can be harder to find when there is dense breast tissue.
The left breast is pressed between two plates. An x-ray machine is used to take pictures of the breast. An inset shows the x-ray film image with an arrow pointed at abnormal tissue.
The breast is pressed between two plates. X-rays are used to take pictures of breast tissue.
The following may affect whether a mammogram is able to detect (find) breast cancer:
The size of the tumor. How dense the breast tissue is. The skill of the radiologist.
Women aged 40 to 74 years who have screening mammograms have a lower chance of dying from breast cancer than women who do not have screening mammograms.
Clinical Breast Exam (CBE):
A clinical breast exam is an exam of the breast by a doctor or other health professional. The doctor will carefully feel the breasts and under the arms for lumps or anything else that seems unusual. It is not known if having clinical breast exams decreases the chance of dying from breast cancer.
Breast self-exams may be done by women or men to check their breasts for lumps or other changes. It is important to know how your breasts usually look and feel. If you feel any lumps or notice any other changes, talk to your doctor. Doing breast self-exams has not been shown to decrease the chance of dying from breast cancer.
Mri (magnetic resonance imaging) in women with a high risk of breast cancer
Mri is a procedure that uses a magnet, radio waves, and a computer to make a series of detailed pictures of areas inside the body. This procedure is also called nuclear magnetic resonance imaging (nmri). Mri does not use any x-rays.
MRI is used as a screening test for women who have one or more of the following:
Certain gene changes, such as in the brca1 or brca2 genes. A family history (first degree relative, such as a mother, daughter or sister) with breast cancer. Certain genetic syndromes, such as li-fraumeni or cowden syndrome.
Mris find breast cancer more often than mammograms do, but it is common for mri results to appear abnormal even when there isn't any cancer.
Other screening tests are being studied in clinical trials.
Thermography is a procedure in which a special camera that senses heat is used to record the temperature of the skin that covers the breasts. A computer makes a map of the breast showing the changes in temperature. Tumors can cause temperature changes that may show up on the thermogram.
There have been no clinical trials of thermography to find out how well it detects breast cancer or if having the procedure decreases the risk of dying from breast cancer.
Breast tissue sampling is taking cells from breast tissue to check under a microscope. Abnormal cells in breast fluid have been linked to an increased risk of breast cancer in some studies. Scientists are studying whether breast tissue sampling can be used to find breast cancer at an early stage or predict the risk of developing breast cancer. Three ways of taking tissue samples are being studied:
Fine-needle aspiration: a thin needle is inserted into the breast tissue around the areola (darkened area around the nipple) to take out a sample of cells and fluid.
Nipple aspiration: the use of gentle suction to collect fluid through the nipple. This is done with a device similar to the breast pumps used by women who are breast-feeding.
Ductal lavage: a hair-size catheter (tube) is inserted into the nipple and a small amount of salt water is released into the duct. The water picks up breast cells and is removed.
The thought of going under the knife to treat your spine problem may give rise to a range of emotions; make you ponder over a number of things such as the recovery period, procedure and techniques involved and so on. Nonetheless, before opting for the surgery, there are certain points that you should go over and these are:
- Be well aware of the cause of your pain - Identifying the cause that is behind your pain is vital in order to decide whether the surgery is going to prove beneficial in the long run or not. If the cause is not identified as the right one, the surgery may prove futile and you may not get the pain relief that you're looking for.
- Gather detailed information about your spine surgeon - Before visiting the spine surgeon, you should collect detailed information about the specialist so as to be able to come up with appropriate questions concerning the surgery. From questions concerning about the surgeon's success and complication rates, numbers of surgeries performed to qualifications of the surgeon, these and much more should be part of your evaluation process.
- Prepare yourself before a consultation - It's good to prepare yourself before a medical consultation. Whether it's researching about the surgery and your condition or being well aware of your family's medical history, or details about the pain that you experience, or your expectations from the surgery, every aspect should be covered so that you derive the maximum benefit from your meeting.
- Carry out your own research - Carrying out your own research on the alternatives before opting for the surgery can put you on a better footing. It's imperative to compare the opinion put forward by the surgeon from genuine sources so that you're better able to understand the merits and demerits of the treatment. If you wish to discuss about any specific problem, you can consult an Orthopedist.
Breast Cancer Prevention:
Anything that increases your chance of developing cancer is called a cancer risk factor; anything that decreases your chance of developing cancer is called a cancer protective factor.
Some risk factors for cancer can be avoided, but many cannot. For example, both smoking and inheriting certain genes are risk factors for some types of cancer, but only smoking can be avoided. Regular exercise and a healthy diet may be protective factors for some types of cancer. Avoiding risk factors and increasing protective factors may lower your risk but it does not mean that you will not get cancer. Different ways to prevent cancer are being studied, including:
Changing lifestyle or eating habits. Avoiding things known to cause cancer. Taking medicine to treat a precancerous condition or to keep cancer from starting.
General information about breast cancer:
Breast cancer is a disease in which malignant (cancer) cells form in the tissues of the breast. Breast cancer is the second most common type of cancer in india
Breast cancer is a disease in which malignant (cancer) cells form in the tissues of the breast.
The breast is made up of lobes and ducts. Each breast has 15 to 20 sections called lobes, which have many smaller sections called lobules. Lobules end in dozens of tiny bulbs that can make milk. The lobes, lobules, and bulbs are linked by thin tubes called ducts.
Enlarge Drawing of female breast anatomy showing the lymph nodes, nipple, areola, chest wall, ribs, muscle, fatty tissue, lobe, ducts, and lobules.
Anatomy of the female breast. The nipple and areola are shown on the outside of the breast. The lymph nodes, lobes, lobules, ducts, and other parts of the inside of the breast are also shown.
Each breast also has blood vessels and lymph vessels. The lymph vessels carry an almost colorless fluid called lymph. Lymph vessels lead to organs called lymph nodes. Lymph nodes are small bean-shaped structures that are found throughout the body. They filter lymph and store white blood cells that help fight infection and disease. Clusters of lymph nodes are found near the breast in the axilla (under the arm), above the collarbone, and in the chest.
Avoiding risk factors and increasing protective factors may help prevent cancer. The following are risk factors for breast cancer:
Older agea personal history of breast cancer or benign (noncancer) breast diseasea family history of breast cancerinherited gene changesdense breasts
Exposure of breast tissue to estrogen made in the bodytaking hormone therapy for symptoms of menopause radiation therapy
The following are protective factors for breast cancer:
Less exposure of breast tissue to estrogen made by the bodytaking estrogen-only hormone therapy after hysterectomy,
Estrogen-only hormone therapy after hysterectomyselective estrogen receptor modulatorsaromatase inhibitors and inactivators
Risk-reducing mastectomy ovarian ablationgetting enough exercise
It is not clear whether the following affect the risk of breast cancer:
Factors include smoking, being overweight, and not getting enough exercise. Increasing protective factors such as quitting smoking and exercising may also help prevent some cancers. Talk to your doctor or other health care professional about how you might lower your risk
Older age is the main risk factor for most cancers. The chance of getting cancer increases as you get older.
A personal history of breast cancer or benign (noncancer) breast disease
Women with any of the following have an increased risk of breast cancer:
A personal history of invasive breast cancer, ductal carcinoma in situ (dcis), or lobular carcinoma in situ (lcis). A personal history of benign (noncancer) breast disease.
A family history of breast cancer
Women with a family history of breast cancer in a first-degree relative (mother, sister, or daughter) have an increased risk of breast cancer.
Inherited gene changes:
Women who have inherited changes in the brca1 and brca2 genes or in certain other genes have a higher risk of breast cancer, ovarian cancer, and maybe colon cancer. The risk of breast cancer caused by inherited gene changes depends on the type of gene mutation, family history of cancer, and other factors.
Men who have inherited certain changes in the brca2 gene have a higher risk of breast, prostate, and pancreatic cancers, and lymphoma.
Having breast tissue that is dense on a mammogram is a factor in breast cancer risk. The level of risk depends on how dense the breast tissue is. Women with very dense breasts have a higher risk of breast cancer than women with low breast density.
Increased breast density is often an inherited trait, but it may also occur in women who have not had children, have a first pregnancy late in life, take postmenopausal hormones, or drink alcohol.
Exposure of breast tissue to estrogen made in the body
Estrogen is a hormone made by the body. It helps the body develop and maintain female sex characteristics. Being exposed to estrogen over a long time may increase the risk of breast cancer. Estrogen levels are highest during the years a woman is menstruating.
A woman's exposure to estrogen is increased in the following ways:
Early menstruation: beginning to have menstrual periods at age 11 or younger increases the number of years the breast tissue is exposed to estrogen. Starting menopause at a later age: the more years a woman menstruates, the longer her breast tissue is exposed to estrogen. Older age at first birth or never having given birth: because estrogen levels are lower during pregnancy, breast tissue is exposed to more estrogen in women who become pregnant for the first time after age 35 or who never become pregnant.
Taking hormone therapy for symptoms of menopause:
Hormones, such as estrogen and progesterone, can be made into a pill form in a laboratory. Estrogen, progestin, or both may be given to replace the estrogen no longer made by the ovaries in postmenopausal women or women who have had their ovaries removed. This is called hormone replacement therapy (hrt) or hormone therapy (ht). Combination hrt/ht is estrogen combined with progestin. This type of hrt/ht increases the risk of breast cancer. Studies show that when women stop taking estrogen combined with progestin, the risk of breast cancer decreases.
Radiation therapy to the breast or chest:
Radiation therapy to the chest for the treatment of cancer increases the risk of breast cancer, starting 10 years after treatment. The risk of breast cancer depends on the dose of radiation and the age at which it is given. The risk is highest if radiation treatment was used during puberty, when breasts are forming.
Radiation therapy to treat cancer in one breast does not appear to increase the risk of cancer in the other breast.
For women who have inherited changes in the brca1 and brca2 genes, exposure to radiation, such as that from chest x-rays, may further increase the risk of breast cancer, especially in women who were x-rayed before 20 years of age.
Obesity increases the risk of breast cancer, especially in postmenopausal women who have not used hormone replacement therapy.
Drinking alcohol increases the risk of breast cancer. The level of risk rises as the amount of alcohol consumed rises.
The following are protective factors for breast cancer:
Less exposure of breast tissue to estrogen made by the body
Decreasing the length of time a woman's breast tissue is exposed to estrogen may help prevent breast cancer. Exposure to estrogen is reduced in the following ways:
Early pregnancy: estrogen levels are lower during pregnancy. Women who have a full-term pregnancy before age 20 have a lower risk of breast cancer than women who have not had children or who give birth to their first child after age 35. Breast-feeding: estrogen levels may remain lower while a woman is breast-feeding. Women who breastfed have a lower risk of breast cancer than women who have had children but did not breastfeed.
Taking estrogen-only hormone therapy after hysterectomy, selective estrogen receptor modulators, or aromatase inhibitors and inactivators
Estrogen-only hormone therapy after hysterectomy
Hormone therapy with estrogen only may be given to women who have had a hysterectomy. In these women, estrogen-only therapy after menopause may decrease the risk of breast cancer. There is an increased risk of stroke and heart and blood vessel disease in postmenopausal women who take estrogen after a hysterectomy.
Selective estrogen receptor modulators:
Tamoxifen and raloxifene belong to the family of drugs called selective estrogen receptor modulators (serms). Serms act like estrogen on some tissues in the body, but block the effect of estrogen on other tissues.
Treatment with tamoxifen lowers the risk of estrogen receptor-positive (er-positive) breast cancer and ductal carcinoma in situ in premenopausal and postmenopausal women at high risk. Treatment with raloxifene also lowers the risk of breast cancer in postmenopausal women. With either drug, the reduced risk lasts for several years or longer after treatment is stopped. Lower rates of broken bones have been noted in patients taking raloxifene.
Taking tamoxifen increases the risk of hot flashes, endometrial cancer, stroke, cataracts, and blood clots (especially in the lungs and legs). The risk of having these problems increases with age. Women younger than 50 years who have a high risk of breast cancer may benefit the most from taking tamoxifen. The risk of having these problems decreases after tamoxifen is stopped.
Taking raloxifene increases the risk of blood clots in the lungs and legs, but does not appear to increase the risk of endometrial cancer. In postmenopausal women with osteoporosis (decreased bone density), raloxifene lowers the risk of breast cancer for women who have a high or low risk of breast cancer. It is not known if raloxifene would have the same effect in women who do not have osteoporosis. Talk with your doctor about the risks and benefits of taking this drug.
Aromatase inhibitors and inactivators:
Aromatase inhibitors (anastrozole, letrozole) and inactivators (exemestane) lower the risk of a new breast cancer in women who have a history of breast cancer. Aromatase inhibitors also decrease the risk of breast cancer in women with the following conditions:
Postmenopausal women with a personal history of breast cancer. Women with no personal history of breast cancer who are 60 years and older, have a history of ductal carcinoma in situ with mastectomy, or have a high risk of breast cancer based on the gail model tool (a tool used to estimate the risk of breast cancer).
In women with an increased risk of breast cancer, taking aromatase inhibitors decreases the amount of estrogen made by the body. Before menopause, estrogen is made by the ovaries and other tissues in a woman's body, including the brain, fat tissue, and skin. After menopause, the ovaries stop making estrogen, but the other tissues do not. Aromatase inhibitors block the action of an enzyme called aromatase, which is used to make all of the body's estrogen. Aromatase inactivators stop the enzyme from working.
Possible harms from taking aromatase inhibitors include muscle and joint pain, osteoporosis, hot flashes, and feeling very tired.
Some women who have a high risk of breast cancer may choose to have a risk-reducing mastectomy (the removal of both breasts when there are no signs of cancer). The risk of breast cancer is much lower in these women and most feel less anxious about their risk of breast cancer. However, it is very important to have a cancer risk assessment and counseling about the different ways to prevent breast cancer before making this decision.
The ovaries make most of the estrogen that is made by the body. Treatments that stop or lower the amount of estrogen made by the ovaries include surgery to remove the ovaries, radiation therapy, or taking certain drugs. This is called ovarian ablation.
Premenopausal women who have a high risk of breast cancer due to certain changes in the brca1 and brca2 genes may choose to have a risk-reducing oophorectomy (the removal of both ovaries when there are no signs of cancer). This decreases the amount of estrogen made by the body and lowers the risk of breast cancer. Risk-reducing oophorectomy also lowers the risk of breast cancer in normal premenopausal women and in women with an increased risk of breast cancer due to radiation to the chest. However, it is very important to have a cancer risk assessment and counseling before making this decision. The sudden drop in estrogen levels may cause the symptoms of menopause to begin. These include hot flashes, trouble sleeping, anxiety, and depression. Long-term effects include decreased sex drive, vaginal dryness, and decreased bone density.
Getting enough exercise:
Women who exercise four or more hours a week have a lower risk of breast cancer. The effect of exercise on breast cancer risk may be greatest in premenopausal women who have normal or low body weight.
It is not clear whether the following affect the risk of breast cancer:
Certain oral contraceptives contain estrogen. Some studies have shown that taking oral contraceptives (" the pill") may slightly increase the risk of breast cancer in current users. This risk decreases over time. Other studies have not shown an increased risk of breast cancer in women who take oral contraceptives.
Progestin -only contraceptives that are injected or implanted do not appear to increase the risk of breast cancer. More studies are needed to know whether progestin-only oral contraceptives increase the risk of breast cancer.
Studies have not proven that being exposed to certain substances in the environment, such as chemicals, increases the risk of breast cancer.
Studies have shown that some factors do not affect the risk of breast cancer.
The following do not affect the risk of breast cancer:
Having an abortion. Making diet changes such as eating less fat or more fruits and vegetables. Taking vitamins, including fenretinide (a type of vitamin a). Cigarette smoking, both active and passive (inhaling secondhand smoke). Using underarm deodorant or antiperspirant. Taking statins (cholesterol -lowering drugs). Taking bisphosphonates (drugs used to treat osteoporosis and hypercalcemia) by mouth or by intravenous infusion.
Cancer prevention clinical trials are used to study ways to prevent cancer.