Ewing sarcoma


Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to Ewing sarcoma: osteosarcoma

Ew·ing tu·mor

(yū'ing),
a malignant neoplasm which occurs usually before the age of 20 years, about twice as frequently in males, and in about 75% of patients involves bones of the extremities, including the shoulder girdle, with a predilection for the metaphysis; histologically, there are conspicuous foci of necrosis in association with irregular masses of small, regular, rounded, or ovoid cells (2-3 times the diameter of erythrocytes), with very scanty cytoplasm.

Ewing sarcoma

Primitive neuroectodermal tumor, PNET Oncology A primitive neuroectodermal tumor, which primarily affects the midshaft of long bones, which is closely related–if not biologically identical to peripheral neuroepitheliomas Clinical Locoregional bone pain, or pathologic fractures Treatment Excision, RT; few respond to chemotherapy. See Peripheral neuroepithelioma.

Ew·ing tu·mor

(yū'ing tū'mŏr)
A malignant neoplasm that occurs usually before the age of 20 years, about twice as frequently in males, and in about 75% of patients involves bones of the extremities, including the shoulder girdle, with a predilection for the metaphysis; histologically, there are conspicuous foci of necrosis in association with irregular masses of small, regular, rounded, or ovoid cells (2-3 times the diameter of erythrocytes), with very scanty cytoplasm.
Synonym(s): endothelial myeloma, Ewing sarcoma.

Ewing,

James, U.S. pathologist, 1866-1943.
Ewing sarcoma - Synonym(s): Ewing tumor
Ewing tumor - a malignant neoplasm that involves bones of the extremities, including the shoulder girdle, with a predilection for the metaphysis. Synonym(s): endothelial myeloma; Ewing sarcoma
References in periodicals archive ?
FLI1 is expressed in Ewing sarcoma, subsets of wide range of mesenchymal tumors, subsets of high-grade lymphomas including lymphoblastic lymphomas and diffuse large B-cell lymphomas, and even subsets of carcinomas and melanomas, thus it has limited utility by itself owing to its low specificity.
The report reviews pipeline therapeutics for Ewing Sarcoma by companies and universities/research institutes based on information derived from company and industry-specific sources
DISCUSSION: The Ewing sarcoma family of tumors includes Ewing sarcoma, peripheral primitive neuroectodermal tumor, neuroepithelioma, atypical Ewing sarcoma, and Askin tumor (Tumor of the chest wall).
Massive pleural effusion in an 18-year-old girl with Ewing sarcoma.
The diagnosis was Ewing sarcoma, a cancer of the bones or soft tissue that most often strikes children and adolescents, less often people in their 20s and rarely in adults older than 30.
Mr Sowerby, 44, was diagnosed with Ewing Sarcoma - a rare and aggressive cancer - and died on February 17.
Scientists from the University of Manchester in the United Kingdom have shown in laboratory tests that the drug RH1 can kill tumor cells from neuroblastoma, osteosarcoma, and Ewing sarcoma, three types of childhood and adolescent cancers that often are resistant to currently available chemotherapy.
Cancers that peak in incidence during adolescence include osteosarcoma, Ewing sarcoma, gonadal germ cell tumors and Hodgkin lymphoma.
Use of MR imaging to assess results of chemotherapy for Ewing sarcoma.
These included Hodgkin lymphoma, a type of cancer affecting the lymphatic system, osteosarcoma, the most common type of bone cancer, and Ewing sarcoma, a form of malignant bone cancer.
Tyne Wear Fire Service chiefs made her an honorary young firefighter and set about collecting cash for researchers looking for a cure for Ewing Sarcoma, a rare cancer which affects 30 children in the UK a year.