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- A lesion refers to any abnormal change or damage in the body's tissues, which can be caused by various factors such as injury, infection, or disease. Lesions can be benign or malignant, and they can occur in different parts of the body. On the other hand, a tumor specifically refers to an abnormal mass or growth of cells that form a lump.
connect.mayoclinic.org › discussion › lesions-vs-tumorsLesions vs tumors: Anyone have experience with breast lesions?
Jul 22, 2023 · A tumor can be benign or cancerous (malignant). Cysts that appear uniform after examination by ultrasound or a computerized tomography (CT) scan are almost always benign and should simply be observed. If the cyst has solid components, it may be benign or malignant and should have further evaluation.
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What is the difference between primary and secondary brain tumors?
What is a noncancerous brain tumor?
Are brain tumors cancerous?
What is a brain tumor?
- Overview
- Symptoms
- Causes
- Risk Factors
- Prevention
A brain tumor is a growth of cells in the brain or near it. Brain tumors can happen in the brain tissue. Brain tumors also can happen near the brain tissue. Nearby locations include nerves, the pituitary gland, the pineal gland, and the membranes that cover the surface of the brain. Brain tumors can begin in the brain. These are called primary brai...
The signs and symptoms of a brain tumor depend on the brain tumor's size and location. Symptoms also might depend on how fast the brain tumor is growing, which is also called the tumor grade. General signs and symptoms caused by brain tumors may include: 1. Headache or pressure in the head that is worse in the morning. 2. Headaches that happen more...
Brain tumors that begin in the brain
Brain tumors that start as a growth of cells in the brain are called primary brain tumors. They might start right in the brain or in the tissue nearby. Nearby tissue might include the membranes that cover the brain, called meninges. Brain tumors also can happen in nerves, the pituitary gland and the pineal gland. Brain tumors happen when cells in or near the brain get changes in their DNA. A cell's DNA holds the instructions that tell the cell what to do. The changes tell the cells to grow qu...
Cancer that spreads to the brain
Secondary brain tumors happen when cancer starts somewhere else and spreads to the brain. When cancer spreads, it's called metastatic cancer. Any cancer can spread to the brain, but common types include: 1. Breast cancer. 2. Colon cancer. 3. Kidney cancer. 4. Lung cancer. 5. Melanoma. It's not clear why some cancers spread to the brain and others are more likely to spread to other places. Secondary brain tumors most often happen in people who have a history of cancer. Rarely, a brain tumor ma...
In most people with primary brain tumors, the cause isn't clear. But doctors have identified some factors that may raise the risk. Risk factors include: 1. Age.Brain tumors can happen at any age, but they happen most often in older adults. Some brain tumors mostly affect adults. Some brain tumors happen most often in children. 2. Race.Anyone can ge...
There's no way to prevent brain tumors. If you get a brain tumor, you didn't do anything to cause it. People with an increased risk of brain tumor might consider screening tests. Screening isn't brain tumor prevention. But screening might help find a brain tumor when it's small and treatment is more likely to be successful. If you have a family his...
May 4, 2024 · Pancreatic cancer — Overview covers symptoms, risk factors, prevention, diagnosis, surgery, chemotherapy and other treatment for cancer of the pancreas.
- Pancreatic cancer is aggressive and causes nonspecific symptoms. "For 50% of patients at the time of their diagnosis, we find that the cancer has spread outside the pancreas to other organs, meaning stage four metastatic pancreas cancer," says Dr. Truty.
- Diagnosing pancreatic cancer is a multi-step process. When a doctor suspects a patient might have pancreatic cancer, the first step is imaging tests to visualize the internal organs.
- The cause of most pancreatic cancers is unclear. Doctors have identified some factors that may increase the risk of pancreatic cancer, including smoking, diabetes, chronic inflammation of the pancreas (pancreatitis), obesity, and family history, but the cause is not clear.
- There's no good way to screen for pancreatic cancer. Doctors don't yet have a good way to screen large portions of the population for pancreatic cancer.
Aug 2, 2023 · Treating glioblastoma. Treatment for glioblastoma can include surgery, radiation therapy, chemotherapy or targeted therapy treatments that focus on specific characteristics of the cancer cells. If your tumor is causing symptoms, you may also receive treatment to ease them.
May 10, 2022 · The most common cancerous, or malignant, brain tumor is the glioblastoma, a type of glioma that begins in the brain or spinal cord. The most common primary noncancerous, or benign, brain tumor is the meningioma, which arises from the membranes that surround the brain and spinal cord.
Jan 12, 2023 · Neuroendocrine tumors (NETs) are cancers that begin in specialized cells called neuroendocrine cells. These tumors are rare and can occur anywhere in the body. NETs are notoriously difficult to diagnose, and treatment can be complex. Clinical trials at Mayo Clinic are studying new ways to diagnose and treat NETs.
