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Cancer of the colon or rectum (colorectal cancer) usually develops slowly, over several years. Take this simple assessment to learn about your risks for this type of cancer.

OverviewSee All
 Anatomy of the Brain in Overview
The brain is an important organ that controls thought, memory, emotion, touch, motor skills, vision, respiration, and every process that regulates your body. ...more
 Basics of Brain Tumors in Overview
A brain tumor starts when cells in the brain change and grow out of control. As they continue to grow, they form a mass of cells that becomes a tumor. ...more
 Brain Tumors: Introduction in Overview
A brain tumor is an abnormal growth of tissue in the brain....more
 Skull Base Chordoma in Overview
A chordoma is a form of bone cancer that can occur anywhere along the length of the spine from the base of the skull to the lower back. ...more
 Craniopharyngioma in Children in Overview
Craniopharyngioma is a benign brain tumor that is found near the pituitary gland....more
 Rathke Cleft Cyst in Overview
Rathke cleft cysts are noncancerous fluid-filled growths that develop between the parts of the pituitary gland at the base of the brain. They develop while a baby is growing in the uterus. A Rathke cleft cyst develops from a piece of the fetus' developing Rathke pouch, which ultimately becomes part of the pituitary gland. ...more
 Paranasal Sinus Tumors in Overview
A paranasal sinus tumor is a cancer that has grown inside your sinuses, the open spaces behind your nose. ...more
 Olfactory Neuroblastoma in Overview
An olfactory neuroblastoma often happens on the roof of the nasal cavity. It involves the cribriform plate, which is a bone between the eyes and located deep in the skull. ...more
 Anatomy of the Brain in Overview
The brain is an important organ that controls thought, memory, emotion, touch, motor skills, vision, respiration, and every process that regulates your body. ...more
 Basics of Brain Tumors in Overview
A brain tumor starts when cells in the brain change and grow out of control. As they continue to grow, they form a mass of cells that becomes a tumor. ...more
 Brain Tumors: Introduction in Overview
A brain tumor is an abnormal growth of tissue in the brain....more
 Skull Base Chordoma in Overview
A chordoma is a form of bone cancer that can occur anywhere along the length of the spine from the base of the skull to the lower back. ...more
 Craniopharyngioma in Children in Overview
Craniopharyngioma is a benign brain tumor that is found near the pituitary gland....more
 Rathke Cleft Cyst in Overview
Rathke cleft cysts are noncancerous fluid-filled growths that develop between the parts of the pituitary gland at the base of the brain. They develop while a baby is growing in the uterus. A Rathke cleft cyst develops from a piece of the fetus' developing Rathke pouch, which ultimately becomes part of the pituitary gland. ...more
 Paranasal Sinus Tumors in Overview
A paranasal sinus tumor is a cancer that has grown inside your sinuses, the open spaces behind your nose. ...more
 Olfactory Neuroblastoma in Overview
An olfactory neuroblastoma often happens on the roof of the nasal cavity. It involves the cribriform plate, which is a bone between the eyes and located deep in the skull. ...more
More
Understanding Your DiagnosisSee All
If your healthcare provider thinks you might have a brain tumor, you will need exams, imaging scans, and tests to know for sure. ...more
 Skull X-ray in Understanding Your Diagnosis
X-rays use invisible electromagnetic energy beams to make images of internal tissues, bones, and organs on film. Standard X-rays are done for many reasons, including diagnosing tumors or bone injuries. ...more
A computed tomography (CT) scan is an imaging test that uses X-rays and a computer to make detailed images of the body. A CT scan shows details of the bones, muscles, fat, and organs. ...more
Computed tomography is an imaging test that uses X-rays and a computer to make detailed images of the body. A CT scan shows details of the bones, muscles, fat, and organs. CT scans are more detailed than standard X-rays. ...more
Magnetic resonance imaging (MRI) uses a large magnet, radiofrequencies, and a computer to make detailed images of organs and structures within the body, in this case, the brain and spine. MRI is used to help diagnose a health problem. ...more
A positron emission tomography (PET) scan is a type of nuclear medicine imaging test. It is used to examine various body tissues to identify certain conditions by looking at blood flow, metabolism, and oxygen use. PET scans may also be used to see how well the treatment of certain diseases is working. ...more
An EEG is a procedure that detects abnormalities in your brain waves, or in the electrical activity of your brain. ...more
 Craniotomy in Understanding Your Diagnosis
A craniotomy is the surgical removal of part of the bone from the skull to expose the brain for surgery. Read on to learn what to expect before, during, and after this procedure. ...more
If your healthcare provider thinks you might have a brain tumor, you will need exams, imaging scans, and tests to know for sure. ...more
 Skull X-ray in Understanding Your Diagnosis
X-rays use invisible electromagnetic energy beams to make images of internal tissues, bones, and organs on film. Standard X-rays are done for many reasons, including diagnosing tumors or bone injuries. ...more
A computed tomography (CT) scan is an imaging test that uses X-rays and a computer to make detailed images of the body. A CT scan shows details of the bones, muscles, fat, and organs. ...more
Computed tomography is an imaging test that uses X-rays and a computer to make detailed images of the body. A CT scan shows details of the bones, muscles, fat, and organs. CT scans are more detailed than standard X-rays. ...more
Magnetic resonance imaging (MRI) uses a large magnet, radiofrequencies, and a computer to make detailed images of organs and structures within the body, in this case, the brain and spine. MRI is used to help diagnose a health problem. ...more
A positron emission tomography (PET) scan is a type of nuclear medicine imaging test. It is used to examine various body tissues to identify certain conditions by looking at blood flow, metabolism, and oxygen use. PET scans may also be used to see how well the treatment of certain diseases is working. ...more
An EEG is a procedure that detects abnormalities in your brain waves, or in the electrical activity of your brain. ...more
 Craniotomy in Understanding Your Diagnosis
A craniotomy is the surgical removal of part of the bone from the skull to expose the brain for surgery. Read on to learn what to expect before, during, and after this procedure. ...more
More
Deciding on TreatmentSee All
Many different types of treatment can be used for brain tumors. Which may work best for you? It depends on a number of factors. ...more
 Brachytherapy in Deciding on Treatment
Brachytherapy is radiation treatment that is given directly into your body. It is placed as close to the cancer as possible. The radiation is given using tiny devices, such as wires, seeds, or rods filled with radioactive materials. These devices are called implants. ...more
 Surgery to Treat Cancer in Deciding on Treatment
One type of surgery for cancer is curative. This procedure takes out the cancerous tumor or growth from the body. Surgeons use curative surgery when the cancerous tumor is in 1 certain part of the body. This type of treatment is often the main treatment. But other types of cancer treatments, such as radiation, may be used before or after the surgery. ...more
 Brain Tumors: Surgery in Deciding on Treatment
Surgery is a common treatment for many types of brain tumors. It's often the first treatment used. ...more
Targeted therapy is the use of medicines that target the parts of cancer cells that make them unlike normal cells. Or the medicines can target other cells that help tumors grow. ...more
A brain tumor is an abnormal growth of tissue in the brain. The tumor can either originate in the brain itself or come from another part of the body and travel to the brain. ...more
After brain tumor treatment, it’s normal for a child to have after-effects. For instance, your child may have trouble talking, walking normally, or swallowing. Rehabilitation therapy can lessen these problems and help your child turn to normal activities, such as attending school. ...more
Many different types of treatment can be used for brain tumors. Which may work best for you? It depends on a number of factors. ...more
 Brachytherapy in Deciding on Treatment
Brachytherapy is radiation treatment that is given directly into your body. It is placed as close to the cancer as possible. The radiation is given using tiny devices, such as wires, seeds, or rods filled with radioactive materials. These devices are called implants. ...more
 Surgery to Treat Cancer in Deciding on Treatment
One type of surgery for cancer is curative. This procedure takes out the cancerous tumor or growth from the body. Surgeons use curative surgery when the cancerous tumor is in 1 certain part of the body. This type of treatment is often the main treatment. But other types of cancer treatments, such as radiation, may be used before or after the surgery. ...more
 Brain Tumors: Surgery in Deciding on Treatment
Surgery is a common treatment for many types of brain tumors. It's often the first treatment used. ...more
Targeted therapy is the use of medicines that target the parts of cancer cells that make them unlike normal cells. Or the medicines can target other cells that help tumors grow. ...more
A brain tumor is an abnormal growth of tissue in the brain. The tumor can either originate in the brain itself or come from another part of the body and travel to the brain. ...more
After brain tumor treatment, it’s normal for a child to have after-effects. For instance, your child may have trouble talking, walking normally, or swallowing. Rehabilitation therapy can lessen these problems and help your child turn to normal activities, such as attending school. ...more
Managing Side EffectsSee All
Brain tumors may affect how you think, reason, and remember. Many people with brain tumors also have problems with concentration, language skills, and memory. ...more
You may have difficulty eating or lose your appetite during cancer treatment. Try eating small, frequent meals throughout the day. To improve your appetite, don't drink beverages with your meals. ...more
Fatigue can come and go or stay constant for a while. Fatigue from chemotherapy tends to happen a few days after the treatment, peaks, and then gets better before the next treatment. Fatigue from radiation may not happen right away. ...more
One way to reach out is to provide emotional support or help your loved one find an appropriate source of social support. Many people who have brain tumors find it helpful to talk to others who have been through a similar diagnosis and treatment program. ...more
Chemotherapy Side Effects
Brain tumors may affect how you think, reason, and remember. Many people with brain tumors also have problems with concentration, language skills, and memory. ...more
You may have difficulty eating or lose your appetite during cancer treatment. Try eating small, frequent meals throughout the day. To improve your appetite, don't drink beverages with your meals. ...more
Fatigue can come and go or stay constant for a while. Fatigue from chemotherapy tends to happen a few days after the treatment, peaks, and then gets better before the next treatment. Fatigue from radiation may not happen right away. ...more
One way to reach out is to provide emotional support or help your loved one find an appropriate source of social support. Many people who have brain tumors find it helpful to talk to others who have been through a similar diagnosis and treatment program. ...more
Cancer FAQsSee All
 Brain Cancer: Overview in Cancer FAQs
Brain cancer includes primary and secondary tumors. Learn more about symptoms, diagnosis, and treatments. ...more
 Brain Cancer: Overview in Cancer FAQs
Brain cancer includes primary and secondary tumors. Learn more about symptoms, diagnosis, and treatments. ...more