Carcinoid tumor is a type of neuroendocrine tumor that grows from neuroendocrine cells. Neuroendocrine cells receive and send messages through hormones to help the body function. Neuroendocrine cells are found in organs throughout the body. Carcinoid tumors often grow very slowly.
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Malignant brain tumors do not have distinct borders
Neuroendocrine tumors such as carcinoid tumors are rare, and no information consequently is yet available on cause or prevention.
carcinoid tumor
Rhabdomyosarcomas are rare types of muscle tumors. They typically grow on the tissue of striated muscle. These tumors are usually malignant.
Neuroendocrine carcinoid syndrome is the constellation of symptoms typically exhibited by patients with metastases from carcinoid tumors when the disease has advanced. Carcinoid tumors usually secrete excessive amounts of the hormone serotonin which triggers reactions and can include the following: Flushing Diarrhea Heart valvular lesions Cramping Telangiectasia Peripheral edema Wheezing Cyanosis Arthritis Pellagra Night Sweats
Malignant tumors
It is highly unusual for malignant brain tumors to spread beyond the central nervous system
Two types of tumors are benign and malignant tumors. Benign tumors are usually harmless and grow at a slow rate. However, they can grow larger and become problematic. Malignant tumors are the opposite, growing at a fast rate and causing serious health problems.
Benign tumors are consistent , unchanging. Whereas, malignant are quite inconsistent. They change often times in color and form.
Tumors are of two types, benign or malignant. A benign tumor is not considered cancer. It is slow growing, does not spread or invade surrounding tissue, and once it is removed, doesn't usually recur. A malignant tumor, on the other hand.
Carcinoid tumors affect hormone-producing cells of our organs and can be found in the stomach, in the lungs, in the pancreas or in testicles (man) and ovaries (woman).