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    Ewing Sarcoma Treatment (PDQ®): Treatment - Health Professional Information [NCI] - Cellular Classification

    continued...

    A molecular test (i.e., reverse transcriptase polymerase chain reaction [PCR] and restriction analysis of PCR products), currently available on a research basis only, now offers the opportunity to markedly simplify the definition of Ewing sarcoma.[7,8] The molecular assay can be performed on relatively small amounts of tissue obtained by minimally invasive biopsies and is capable of providing results faster than cytogenetic analysis.

    References:

    1. Parham DM, Hijazi Y, Steinberg SM, et al.: Neuroectodermal differentiation in Ewing's sarcoma family of tumors does not predict tumor behavior. Hum Pathol 30 (8): 911-8, 1999.
    2. Delattre O, Zucman J, Melot T, et al.: The Ewing family of tumors--a subgroup of small-round-cell tumors defined by specific chimeric transcripts. N Engl J Med 331 (5): 294-9, 1994.
    3. Urano F, Umezawa A, Yabe H, et al.: Molecular analysis of Ewing's sarcoma: another fusion gene, EWS-E1AF, available for diagnosis. Jpn J Cancer Res 89 (7): 703-11, 1998.
    4. Hattinger CM, Rumpler S, Strehl S, et al.: Prognostic impact of deletions at 1p36 and numerical aberrations in Ewing tumors. Genes Chromosomes Cancer 24 (3): 243-54, 1999.
    5. Sankar S, Lessnick SL: Promiscuous partnerships in Ewing's sarcoma. Cancer Genet 204 (7): 351-65, 2011.
    6. Roberts P, Burchill SA, Brownhill S, et al.: Ploidy and karyotype complexity are powerful prognostic indicators in the Ewing's sarcoma family of tumors: a study by the United Kingdom Cancer Cytogenetics and the Children's Cancer and Leukaemia Group. Genes Chromosomes Cancer 47 (3): 207-20, 2008.
    7. Meier VS, Kühne T, Jundt G, et al.: Molecular diagnosis of Ewing tumors: improved detection of EWS-FLI-1 and EWS-ERG chimeric transcripts and rapid determination of exon combinations. Diagn Mol Pathol 7 (1): 29-35, 1998.
    8. Dagher R, Pham TA, Sorbara L, et al.: Molecular confirmation of Ewing sarcoma. J Pediatr Hematol Oncol 23 (4): 221-4, 2001.

    This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

    WebMD Public Information from the National Cancer Institute

    Last Updated: 8/, 015
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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