Cancer - Symptoms and causes - Mayo Clinic
2024年11月19日 · Normal cells know when to stop growing so that you have just the right number of each type of cell. Cancer cells lose the controls (tumor suppressor genes) that tell them when to stop growing. A mutation in a tumor suppressor gene allows cancer cells to continue growing and accumulating. Make mistakes when repairing DNA errors.
Brain tumor - Symptoms and causes - Mayo Clinic
2024年12月19日 · Pineoblastoma is a malignant type of pineal tumor that's most common in children. Meningiomas. Meningiomas are brain tumors that start in the membranes around the brain and spinal cord. Meningiomas are usually benign, but sometimes they can be malignant. Meningiomas are the most common type of benign brain tumor. Nerve tumors.
Cancer - Diagnosis and treatment - Mayo Clinic
2024年11月19日 · Treatment. Many cancer treatments are available. Your treatment options will depend on several factors, such as the type and stage of your cancer, your general health, and your preferences.
Pancreatic cancer - Symptoms and causes - Mayo Clinic
2024年5月4日 · A growing tumor may press on nerves in your abdomen, causing pain that can become severe. Pain medications can help you feel more comfortable. Treatments, such as radiation and chemotherapy, might help slow tumor growth and provide some pain relief. When medicines aren't helping, a health care professional might suggest a celiac plexus block.
Esophageal cancer - Symptoms and causes - Mayo Clinic
2024年5月2日 · The cancer cells might form a mass called a tumor. The tumor can grow to invade and destroy healthy body tissue. In time, cancer cells can break away and spread to other parts of the body. When cancer spreads, it's called metastatic cancer. Types of esophageal cancer. Esophageal cancer is classified depending on the type of cells that are involved.
Sarcoma - Symptoms and causes - Mayo Clinic
2022年12月28日 · Mutations might tell cells to grow and divide uncontrollably and to continue living when normal cells would die. If this happens, the accumulating abnormal cells can form a tumor. Cells can break away and spread (metastasize) to other parts of the body. Risk factors. Factors that can increase the risk of sarcoma include: Inherited syndromes.
Thyroid cancer - Symptoms and causes - Mayo Clinic
2024年1月5日 · Thyroid cancer is classified into types based on the kinds of cells found in the tumor. Your type is determined when a sample of tissue from your cancer is examined under a microscope. The type of thyroid cancer is considered in determining your treatment and prognosis. Types of thyroid cancer include: Differentiated thyroid cancers.
Stomach cancer - Symptoms and causes - Mayo Clinic
2024年6月19日 · Carcinoid tumors are cancers that start in the neuroendocrine cells. Neuroendocrine cells are found in many places in the body. They do some nerve cell functions and some of the work of cells that make hormones. Carcinoid tumors are a type of neuroendocrine tumor. Lymphoma. Lymphoma is a cancer that starts in immune system cells.
Kidney cancer - Symptoms and causes - Mayo Clinic
2024年8月17日 · The cancer cells form a mass called a tumor. The tumor can grow to invade and destroy healthy body tissue. In time, cancer cells can break away and spread to other parts of the body. When cancer spreads, it's called metastatic cancer. Risk factors. Factors that may increase the risk of kidney cancer include: Older age.
Medulloblastoma - Overview - Mayo Clinic
2024年12月19日 · Medulloblastoma (muh-dul-o-blas-TOE-muh) is a cancerous brain tumor that starts in the lower back part of the brain. This part of the brain is called the cerebellum. It is involved in muscle coordination, balance and movement. Medulloblastoma begins as a growth of cells, which is called a tumor.