Multiple myeloma is also called plasma cell myeloma and Kahler disease. Our page on multiple myeloma and other plasma cell neoplasms has more information.
Melanoma is cancer that begins in cells that become melanocytes, which are specialized cells that make melanin the pigment that gives skin its color. Most melanomas form on the skin, but melanomas can also form in other pigmented tissues, such as the eye. Our pages on skin cancer and intraocular melanoma have more information.
There are different types of brain and spinal cord tumors. These tumors are named based on the type of cell in which they formed and where the tumor first formed in the central nervous system. For example, an astrocytic tumor begins in star-shaped brain cells called astrocytes , which help keep nerve cells healthy. Brain tumors can be benign not cancer or malignant cancer.
Our pages on brain and spinal cord tumors in adults and brain and spinal cord tumors in children have more information. Germ cell tumors are a type of tumor that begins in the cells that give rise to sperm or eggs.
These tumors can occur almost anywhere in the body and can be either benign or malignant. Neuroendocrine tumors form from cells that release hormones into the blood in response to a signal from the nervous system. These tumors, which may make higher-than-normal amounts of hormones, can cause many different symptoms. Neuroendocrine tumors may be benign or malignant. Our definition of neuroendocrine tumors has more information. Carcinoid tumors are a type of neuroendocrine tumor.
They are slow-growing tumors that are usually found in the gastrointestinal system most often in the rectum and small intestine. Carcinoid tumors may spread to the liver or other sites in the body, and they may secrete substances such as serotonin or prostaglandins, causing carcinoid syndrome.
Our page on gastrointestinal carcinoid tumors has more information. Menu Contact Dictionary Search. Understanding Cancer. What Is Cancer?
Cancer Statistics. Cancer Disparities. Cancer Causes and Prevention. Risk Factors. Cancer Prevention Overview. Cancer Screening Overview. Screening Tests. Diagnosis and Staging. Questions to Ask about Your Diagnosis. Types of Cancer Treatment. Side Effects of Cancer Treatment. Clinical Trials Information. A to Z List of Cancer Drugs.
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Emotional Support for Young People with Cancer. Cancers by Body Location. Late Effects of Childhood Cancer Treatment. Pediatric Supportive Care. Rare Cancers of Childhood Treatment. Childhood Cancer Genomics. Others grow more slowly. Some are more likely to spread to other parts of the body. Others tend to stay where they started. Some types of cancer are best treated with surgery; others respond better to drugs such as chemotherapy. Often 2 or more treatments are used to get the best results.
What makes cancer different is that it can spread to other parts of the body while benign tumors do not. Cancer cells can break away from the site where the cancer started. These cells can travel to other parts of the body and end up in the lymph nodes or other body organs causing problems with normal functions. Cancer cells develop because of multiple changes in their genes. These changes can have many possible causes.
For more consumer health news and information, visit health. For wellness toolkits, visit www. Site Menu Home. April Print this issue. Health Capsule. Video of Metastasis: How Cancer Spreads. Related Stories. Some that are not curable can still be treated, and people can live for many years with the cancer. Still other tumors are quickly life threatening. Burstein E. Cellular growth and neoplasia. Sleisenger and Fordtran's Gastrointestinal and Liver Disease. Philadelphia, PA: Elsevier; chap 1.
National Cancer Institute website. Symptoms of cancer. Updated May 16, Accessed July 12, Cancer genetics and genomics. Philadelphia, PA: Elsevier; chap Park BH. Cancer biology and genetics.
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