Neoplastic Process
ewings sarcoma
[ yoo-ings sahr-koh-muh ]
Subclass of:
Osteosarcoma
Definitions related to ewings sarcoma:
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A malignant neoplasm of the bone, or the soft tissue adjacent to bone, that is comprised of primitive neuroectodermal cells.NICHD Pediatric TerminologyU.S. National Cancer Institute, 2021
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A small round cell tumor that lacks morphologic, immunohistochemical, and electron microscopic evidence of neuroectodermal differentiation. It represents one of the two ends of the spectrum called Ewing sarcoma/peripheral neuroectodermal tumor. It affects mostly males under age 20, and it can occur in soft tissue or bone. Pain and the presence of a mass are the most common clinical symptoms.NCI ThesaurusU.S. National Cancer Institute, 2021
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A type of cancer that forms in bone or soft tissue.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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(ewing's tumor) Malignant tumor of bones which always arises in medullary tissue, occurring more often in cylindrical bones, with pain, fever, and leukocytosis.CRISP ThesaurusNational Institutes of Health, 2006
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(sarcoma, ewing) A malignant tumor of the bone which always arises in the medullary tissue, occurring more often in cylindrical bones. The tumor occurs usually before the age of 20, about twice as frequently in males as in females.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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Ewing sarcoma is a cancerous tumor that occurs in bones or soft tissues, such as cartilage or nerves. There are several types of Ewing sarcoma, including Ewing sarcoma of bone, extraosseous Ewing sarcoma, peripheral primitive neuroectodermal tumor (pPNET), and Askin tumor. These tumors are considered to be related because they have similar genetic causes. These types of Ewing sarcoma can be distinguished from one another by the tissue in which the tumor develops. Approximately 87 percent of Ewing sarcomas are Ewing sarcoma of bone, which is a bone tumor that usually occurs in the thigh bones (femurs), pelvis, ribs, or shoulder blades. Extraosseous (or extraskeletal) Ewing sarcoma describes tumors in the soft tissues around bones, such as cartilage. pPNETs occur in nerve tissue and can be found in many parts of the body. A type of pPNET found in the chest is called Askin tumor. Ewing sarcomas most often occur in children and young adults. Affected individuals usually feel stiffness, pain, swelling, or tenderness of the bone or surrounding tissue. Sometimes, there is a lump near the surface of the skin that feels warm and soft to the touch. Often, children have a fever that does not go away. Ewing sarcoma of bone can cause weakening of the involved bone, and affected individuals may have a broken bone with no obvious cause. It is common for Ewing sarcoma to spread to other parts of the body (metastasize), usually to the lungs, to other bones, or to the bone...MedlinePlus GeneticsU.S. National Library of Medicine, 2021
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Ewing sarcoma tumors include Ewing sarcoma, Askin tumor, and peripheral primitive neuroectodermal tumors. These tumors have a similar cellular physiology, as well as a shared chromosomal translocation.WebMD, 2019
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Ewing (YOO-ing) sarcoma is a rare type of cancer that occurs in bones or in the soft tissue around the bones.Mayo Foundation for Medical Education and Research
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Ewing sarcoma is a type of cancerous tumor that mainly affects children and young adults. Ewing sarcoma usually occurs in the long bones of the arms and legs, pelvis, or chest. Symptoms may include swelling over the location of the tumor, and pain which gets worse over time. Other symptoms may depend on the size and location of the...National Center for Advancing Translational Sciences
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