]> 2026-07-31T10:06:05+00:00 WBR0753 0 en t(11,22) Ewing's sarcoma is characterized by a t(11,22) chromosomal translocation. t(8,14) t(8,14) translocation is associated with the development of Burkitt's lymphoma. t(15,17) t(15,17) translocation is associated with the development of M3 type of acute myelogenous leukemia (AML). t(12,21) t(12,21) translocation is a good prognostic factor among patients with acute lymphoblastic leukemia (ALL). t(11,14) t(11,14) is associated with the development of Mantle cell lymphoma. Ewing's sarcoma is the second most common bone tumor in children and adolescents. It is a malignant condition that is typically located in the diaphysis of the long bones. Ewing's sarcoma is part of Ewing's sarcoma family of tumors (ESFT), which includes several tumors: Ewing's sarcoma, Askin tumor, and peripheral primitive neuroectodermal tumor. Ewing's sarcoma has a high rate of rapid metastasis, but chemotherapy has greatly contributed to the survival of patients with Ewing's sarcoma. Before chemotherapy, only 10% of patients survived, but now the majority of patients with primary local tumors survive. Ewing's sarcoma is optimally diagnosed by biopsy of the mass, which typically demonstrates small round blue "onion" cells. Molecular findings in Ewing's sarcoma typically show a t(11,22) chromosomal translocation, which results in the formation of ''EWS-FL11'' fusion gene. Normally, the ''EWS'' gene (chromosome 22) encodes an RNA-binding proteins, whereas ''FL11'' gene (chromosome 11) encodes a protein with a DNA-binding domain.<br/> '''Educational Objective:''' Ewing's sarcoma is characterized by a t(11,22) chromosomal translocation that results in the formation of a ''EWS-FL11'' fusion gene.<br/> '''References:''' Balamuth N, Womer RB. Ewing's sarcoma. Lancet Oncol. 2011; 11:184-92.<br> Image Attribution: Ewing sarcoma - PAS - very high mag.jpg by user:Nephron on commons.wikimedia.org under the terms of the GNU Free Documentation License v1.2 licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. Retrieved on 6-March-2015.<br> First Aid 2014 page 422 Genetics A Musculoskeletal/Rheumatology 2020-10-28T01:35:18Z 2459150.5661806 WBR0753