Druvith/medqa huggingface dataset:
What are the symptoms of Childhood Astrocytomas ? 

The signs and symptoms of astrocytomas are not the same in every child. Signs and symptoms depend on the following:          - Where the tumor forms in the brain or spinal cord.    - The size of the tumor.    - How fast the tumor grows.    - The child's age and development.        Some tumors do not cause signs or symptoms. Signs and symptoms may be caused by childhood astrocytomas or by other conditions. Check with your child's doctor if your child has any of the following:         - Morning headache or headache that goes away after vomiting.    -  Nausea and vomiting.    - Vision, hearing, and speech problems.     - Loss of balance and trouble walking.     - Worsening handwriting or slow speech.    - Weakness or change in feeling on one side of the body.    - Unusual sleepiness.    - More or less energy than usual.    - Change in personality or behavior.    -  Seizures.    - Weight loss or weight gain for no known reason.     - Increase in the size of the head (in infants).
What is the outlook for Childhood Astrocytomas ? 

Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery) and treatment options depend on the following:         - Whether the tumor is a low-grade or high-grade astrocytoma.    - Where the tumor has formed in the CNS and if it has spread to nearby tissue or to other parts of the body.    - How fast the tumor is growing.    - The child's age.    - Whether cancer cells remain after surgery.    - Whether there are changes in certain genes.    - Whether the child has NF1 or tuberous sclerosis.    - Whether the child has diencephalic syndrome (a condition which slows physical growth).    - Whether the child has intracranial hypertension (cerebrospinal fluid pressure within the skull is high) at the time of diagnosis.    - Whether the astrocytoma has just been diagnosed or has recurred (come back).        For recurrent astrocytoma, prognosis and treatment depend on how much time passed between the time treatment ended and the time the astrocytoma recurred.
What are the stages of Childhood Astrocytomas ? 

Key Points
                    - The grade of the tumor is used to plan cancer treatment.          - Low-grade astrocytomas     - High-grade astrocytomas        - An MRI is done after surgery.
                
                
                    The grade of the tumor is used to plan cancer treatment.
                    Staging is the process used to find out how much cancer there is and if cancer has spread. It is important to know the stage in order to plan treatment.    There is no standard staging system for childhood astrocytoma. Treatment is based on the following:          - Whether the tumor is low grade or high grade.    - Whether the tumor is newly diagnosed or recurrent (has come back after treatment).        The grade of the tumor describes how abnormal the cancer cells look under a microscope and how quickly the tumor is likely to grow and spread.   The following grades are used:     Low-grade astrocytomas    Low-grade astrocytomas are slow-growing and rarely spread to other parts of the brain and spinal cord or other parts of the body. There are many types of low-grade astrocytomas. Low-grade astrocytomas can be either:            - Grade I tumors pilocytic astrocytoma, subependymal giant cell tumor, or angiocentric glioma.     - Grade II tumors diffuse astrocytoma, pleomorphic xanthoastrocytoma, or choroid glioma of the third ventricle.            Children who have neurofibromatosis type 1 may have more than one low-grade tumor in the brain. Children who have tuberous sclerosis have an increased risk of subependymal giant cell astrocytoma.       High-grade astrocytomas     High-grade astrocytomas are fast-growing and often spread within the brain and spinal cord. There are several types of high-grade astrocytomas. High grade astrocytomas can be either:            - Grade III tumors anaplastic astrocytoma or anaplastic pleomorphic xanthoastrocytoma.      - Grade IV tumors glioblastoma or diffuse midline glioma.             Childhood astrocytomas usually do not spread to other parts of the body.
                
                
                    An MRI is done after surgery.
                    An MRI (magnetic resonance imaging) is done in the first few days after surgery. This is to find out how much tumor, if any, remains after surgery and to plan further treatment.
what research (or clinical trials) is being done for Childhood Astrocytomas ? 

New types of treatment are being tested in clinical trials.
                    This summary section describes treatments that are being studied in clinical trials. It may not mention every new treatment being studied. Information about clinical trials is available from the NCI website.     Other drug therapy     Lenalidomide is a type of angiogenesis inhibitor. It prevents the growth of new blood vessels that are needed by a tumor to grow.
                
                
                    Patients may want to think about taking part in a clinical trial.
                    For some patients, taking part in a clinical trial may be the best treatment choice. Clinical trials are part of the cancer research process. Clinical trials are done to find out if new cancer treatments are safe and effective or better than the standard treatment.   Many of today's standard treatments for cancer are based on earlier clinical trials. Patients who take part in a clinical trial may receive the standard treatment or be among the first to receive a new treatment.   Patients who take part in clinical trials also help improve the way cancer will be treated in the future. Even when clinical trials do not lead to effective new treatments, they often answer important questions and help move research forward.
                
                
                    Patients can enter clinical trials before, during, or after starting their cancer treatment.
                    Some clinical trials only include patients who have not yet received treatment. Other trials test treatments for patients whose cancer has not gotten better. There are also clinical trials that test new ways to stop cancer from recurring (coming back) or reduce the side effects of cancer treatment.   Clinical trials are taking place in many parts of the country. See the Treatment Options section that follows for links to current treatment clinical trials. These have been retrieved from NCI's listing of clinical trials.
What is (are) Prostate Cancer ? 

Key Points
                    - Prostate cancer is a disease in which malignant (cancer) cells form in the tissues of the prostate.    - Signs of prostate cancer include a weak flow of urine or frequent urination.     - Tests that examine the prostate and blood are used to detect (find) and diagnose prostate cancer.    - Certain factors affect prognosis (chance of recovery) and treatment options.
                
                
                    Prostate cancer is a disease in which malignant (cancer) cells form in the tissues of the prostate.
                    The prostate is a gland in the male reproductive system. It lies just below the bladder (the organ that collects and empties urine) and in front of the rectum (the lower part of the intestine). It is about the size of a walnut and surrounds part of the urethra (the tube that empties urine from the bladder). The prostate gland makes fluid that is part of the semen.      Prostate cancer is most common in older men. In the U.S., about 1 out of 5 men will be diagnosed with prostate cancer.
What are the symptoms of Prostate Cancer ? 

Signs of prostate cancer include a weak flow of urine or frequent urination. These and other signs and symptoms may be caused by prostate cancer or by other conditions. Check with your doctor if you have any of the following:         - Weak or interrupted ("stop-and-go") flow of urine.    - Sudden urge to urinate.    - Frequent urination (especially at night).    - Trouble starting the flow of urine.    - Trouble emptying the bladder completely.    - Pain or burning while urinating.    -  Blood in the urine or semen.    - A pain in the back, hips, or pelvis that doesn't go away.    - Shortness of breath, feeling very tired, fast heartbeat, dizziness, or pale skin caused by anemia.        Other conditions may cause the same symptoms. As men age, the prostate may get bigger and block the urethra or bladder. This may cause trouble urinating or sexual problems. The condition is called benign prostatic hyperplasia (BPH), and although it is not cancer, surgery may be needed. The symptoms of benign prostatic hyperplasia or of other problems in the prostate may be like symptoms of prostate cancer.
How to diagnose Prostate Cancer ? 

Tests that examine the prostate and blood are used to detect (find) and diagnose prostate cancer. The following tests and procedures may be used:         -   Physical exam and history : An exam of the body to check general signs of health, including checking for signs of disease, such as lumps or anything else that seems unusual. A history of the patients health habits and past illnesses and treatments will also be taken.    -   Digital rectal exam (DRE): An exam of the rectum. The doctor or nurse inserts a lubricated, gloved finger into the rectum and feels the prostate through the rectal wall for lumps or abnormal areas.     -   Prostate-specific antigen (PSA) test : A test that measures the level of PSA in the blood. PSA is a substance made by the prostate that may be found in an increased amount in the blood of men who have prostate cancer. PSA levels may also be high in men who have an infection or inflammation of the prostate or BPH (an enlarged, but noncancerous, prostate).    -   Transrectal ultrasound : A procedure in which a probe that is about the size of a finger is inserted into the rectum to check the prostate. The probe is used to bounce high-energy sound waves (ultrasound) off internal tissues or organs and make echoes. The echoes form a picture of body tissues called a sonogram. Transrectal ultrasound may be used during a biopsy procedure.    -  Transrectal magnetic resonance imaging (MRI): A procedure that uses a strong magnet, radio waves, and a computer to make a series of detailed pictures of areas inside the body. A probe that gives off radio waves is inserted into the rectum near the prostate. This helps the MRI machine make clearer pictures of the prostate and nearby tissue. A transrectal MRI is done to find out if the cancer has spread outside the prostate into nearby tissues. This procedure is also called nuclear magnetic resonance imaging (NMRI).    -  Biopsy: The removal of cells or tissues so they can be viewed under a microscope by a pathologist. The pathologist will check the tissue sample to see if there are cancer cells and find out the Gleason score. The Gleason score ranges from 2-10 and describes how likely it is that a tumor will spread. The lower the number, the less likely the tumor is to spread.  A transrectal biopsy is used to diagnose prostate cancer. A transrectal biopsy is the removal of tissue from the prostate by inserting a thin needle through the rectum and into the prostate. This procedure is usually done using transrectal ultrasound to help guide where samples of tissue are taken from. A pathologist views the tissue under a microscope to look for cancer cells.
What is the outlook for Prostate Cancer ? 

Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery) and treatment options depend on the following:         - The stage of the cancer (level of PSA, Gleason score, grade of the tumor, how much of the prostate is affected by the cancer, and whether the cancer has spread to other places in the body).    - The patients age.    - Whether the cancer has just been diagnosed or has recurred (come back).        Treatment options also may depend on the following:         - Whether the patient has other health problems.    - The expected side effects of treatment.    - Past treatment for prostate cancer.    - The wishes of the patient.        Most men diagnosed with prostate cancer do not die of it.
what research (or clinical trials) is being done for Prostate Cancer ? 

New types of treatment are being tested in clinical trials.
                    This summary section describes treatments that are being studied in clinical trials. It may not mention every new treatment being studied. Information about clinical trials is available from the NCI website.     Cryosurgery     Cryosurgery is a treatment that uses an instrument to freeze and destroy prostate cancer cells. Ultrasound is used to find the area that will be treated. This type of treatment is also called cryotherapy.    Cryosurgery can cause impotence and leakage of urine from the bladder or stool from the rectum.       High-intensityfocused ultrasound therapy     High-intensityfocused ultrasound therapy is a treatment that uses ultrasound (high-energy sound waves) to destroy cancer cells. To treat prostate cancer, an endorectal probe is used to make the sound waves.       Proton beam radiation therapy     Proton beam radiation therapy is a type of high-energy, external radiation therapy that targets tumors with streams of protons (small, positively charged particles). This type of radiation therapy is being studied in the treatment of prostate cancer.
                
                
                    Patients may want to think about taking part in a clinical trial.
                    For some patients, taking part in a clinical trial may be the best treatment choice. Clinical trials are part of the cancer research process. Clinical trials are done to find out if new cancer treatments are safe and effective or better than the standard treatment.   Many of today's standard treatments for cancer are based on earlier clinical trials. Patients who take part in a clinical trial may receive the standard treatment or be among the first to receive a new treatment.   Patients who take part in clinical trials also help improve the way cancer will be treated in the future. Even when clinical trials do not lead to effective new treatments, they often answer important questions and help move research forward.
                
                
                    Patients can enter clinical trials before, during, or after starting their cancer treatment.
                    Some clinical trials only include patients who have not yet received treatment. Other trials test treatments for patients whose cancer has not gotten better. There are also clinical trials that test new ways to stop cancer from recurring (coming back) or reduce the side effects of cancer treatment.   Clinical trials are taking place in many parts of the country. See the Treatment Options section that follows for links to current treatment clinical trials. These have been retrieved from NCI's listing of clinical trials.
What is (are) Knee Replacement ? 

There are many different types and designs of artificial knees. Most consist of three components: -  the femoral component, which is the part that attaches to the thigh bone  - the tibial component, the part that attaches to the shin bone   - the patellar component, the knee cap. the femoral component, which is the part that attaches to the thigh bone the tibial component, the part that attaches to the shin bone the patellar component, the knee cap. Total and Partial Knee Replacement Knee replacement may be either total or partial/unicompartmental. In total knee replacement, as the name suggests, the entire knee joint is replaced. You will likely need a total knee replacement if you have damage to several parts of your knee. In partial/unicompartmental knee replacement, the surgeon replaces just the damaged part of the knee. You may be able to have a partial knee replacement if only one section of your knee is damaged. However, when one part is replaced, there is a chance that another part will develop arthritis, requiring further surgery. Cemented and Uncemented Joint Components Joint components may also be attached to your own bone in different ways. Most are cemented with a special joint glue into your existing bone; others rely on a process called biologic fixation to hold them in place. This means that the parts are made with a porous surface, and over time your own bone grows into the joint surface to secure them. In some cases, surgeons use a combination of cemented and uncemented parts. This is referred to as a hybrid implant. Minimally Invasive Surgery While some knee replacement surgery requires an 8- to 12-inch incision in the front of the knee, surgeons at many medical centers are now performing what is called minimally invasive surgery using incisions of 3 to 5 inches or even smaller. Because the incision is smaller, there may be less pain and a shorter recovery time. If you think you might be interested in minimally invasive surgery, speak with your surgeon.
What are the complications of Knee Replacement ? 

While new technology and advances in surgical techniques have greatly reduced the risks involved with knee replacements, there are still some risks you should be aware of. Two of the most common possible problems are blood clots and infection. Preventing Blood Clots Blood clots can occur in the veins of your legs after knee replacement surgery. To reduce the risk of clots, your doctor may have you elevate your leg periodically and prescribe special exercises, support hose, or blood thinners. Preventing Infections Infection can occur when bacteria enter the bloodstream from skin or urinary tract infections. To reduce the risk of infection, your doctors may prescribe antibiotics for you to take prior to your surgery and for a short time afterward. Other Complications Other complications, such as new or ongoing pain, stiffness, fracture, bleeding, or injury to the blood vessels can occur. Serious medical complications, such as heart attack or stroke, are very rare. Warning Signs To Watch For To minimize the risk of complications, it is important to recognize signs of potential problems early and contact your doctor. For example, tenderness, redness, and swelling of your calf or swelling of your thigh, ankle, calf, or foot could be warning signs of a possible blood clot. Warning signs of infection include fever or chills, tenderness and swelling of the wound, and drainage from the wound. You should call your doctor if you experience any of these symptoms. It is important to get instructions from your doctor before leaving the hospital and follow them carefully once you get home. Doing so will give you the greatest chance of a successful surgery.
What is (are) Knee Replacement ? 

The main reason to have knee replacement surgery is to ease pain and disability caused by arthritis or other joint problems, while preserving movement. Less commonly, it is used to correct some kinds of knee deformity.
What are the treatments for Knee Replacement ? 

Treatments your doctor will likely recommend before knee replacement include - exercises to strengthen the muscles around the knee and improve flexibility  - weight loss, if needed, to reduce the load the knee must bear   - walking aids such as canes to reduce stress on the joint   - shoe inserts to improve the knees alignment  - medicines to relieve pain.  exercises to strengthen the muscles around the knee and improve flexibility weight loss, if needed, to reduce the load the knee must bear walking aids such as canes to reduce stress on the joint shoe inserts to improve the knees alignment medicines to relieve pain.
What is (are) Knee Replacement ? 

Knee replacement may be either total or partial/unicompartmental. In total knee replacement, as the name suggests, the entire knee joint is replaced. You will likely need a total knee replacement if you have damage to several parts of your knee. In partial/unicompartmental knee replacement, the surgeon replaces just the damaged part of the knee. You may be able to have a partial knee replacement if only one section of your knee is damaged. However, when one part is replaced, there is a chance that another part will develop arthritis, requiring further surgery.
What is (are) Knee Replacement ? 

A physical therapist will teach you exercises to help your recovery. You can expect some pain, discomfort, and stiffness as you begin therapy, but to get the best results from your new knee, it is important to do all of the exercises your physical therapist recommends.
What are the complications of Knee Replacement ? 

Two of the most common possible problems are blood clots and infection. Other complications, such as new or ongoing pain, stiffness, fracture, bleeding, or injury to the blood vessels can occur. Serious medical complications, such as heart attack or stroke, are very rare.
What are the complications of Knee Replacement ? 

To reduce the risk of clots, your doctor may have you elevate your leg periodically and prescribe special exercises, support hose, or blood thinners. To reduce the risk of infection, your doctor may prescribe antibiotics for you to take prior to your surgery and for a short time afterward.
Who is at risk for Knee Replacement? ? 

Because a fall can damage your new knee, making your home a safe place is crucial. Before your surgery, look for and correct hazards, including cluttered floors, loose electrical cords, unsecured rugs, and dark hallways. A raised toilet seat can make it easier to get up and down. Grab bars in the tub can keep you steady.
What is (are) Knee Replacement ? 

You can learn more about knee replacement from the following resources. National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)   Information Clearinghouse  National Institutes of Health  1 AMS Circle  Bethesda, MD 20892-3675  Phone: 301-495-4484  Toll Free: 877-22-NIAMS (226-4267)  TTY: 301-565-2966  Fax: 301-718-6366  Email: NIAMSinfo@mail.nih.gov  Website:  http://www.niams.nih.gov American Physical Therapy Association  Website: http://www.apta.org  Arthritis Foundation  Website:  http://www.arthritis.org The Knee Society  Website:  http://www.kneesociety.org  MedlinePlus  Website: http://www.nlm.nih.gov/medlineplus/kneereplacement.html
What is (are) Low Vision ? 

Everyday Tasks Are Challenging  Low vision means that even with regular glasses, contact lenses, medicine, or surgery, people find everyday tasks difficult to do. Reading the mail, shopping, cooking, seeing the TV, and writing can seem challenging. Millions of Americans lose some of their vision every year. Irreversible vision loss is most common among people over age 65. (Watch the video to learn more about low vision. To enlarge the video, click the brackets in the lower right-hand corner. To reduce the video, press the Escape (Esc) button on your keyboard.) Not a Normal Part of Aging Losing vision is not just part of getting older. Some normal changes occur as we get older. However, these changes usually don't lead to low vision.
What causes Low Vision ? 

Eye Diseases and Health Conditions Most people develop low vision because of eye diseases and health conditions like macular degeneration, cataracts, glaucoma, and diabetes. Your eye care professional can tell the difference between normal changes in the aging eye and those caused by eye diseases. Injuries and Birth Defects A few people develop vision loss after eye injuries or from birth defects. Although vision that is lost usually cannot be restored, many people can make the most of the vision they have. How a Scene Looks to People With Normal and Low Vision Scene as viewed by a person with normal vision. Scene as viewed by a person with diabetic retinopathy. Scene as viewed by a person with age-related macular degeneration. Scene as viewed by a person with glaucoma. Scene as viewed by a person with cataracts.