منابع مشابه
Ewing sarcoma vs lymphoblastic lymphoma. A comparative immunohistochemical study.
To develop a practical immunohistochemistry panel for distinguishing lymphoblastic lymphoma from Ewing sarcoma (ES), we evaluated 17 ES and 27 lymphoblastic lymphoma and leukemia cases with antibodies to CD99, terminal deoxynucleotidyl transferase (TdT), leukocyte common antigen (LCA), CD43, CD79a, CD20, CD3, vimentin, and neuron-specific enolase (NSE). Three cases were bone lymphomas, 2 initia...
متن کاملAcute lymphoblastic leukemia arising after treatment of Ewing sarcoma was misdiagnosed as bone marrow metastasis of Ewing sarcoma
RATIONALE Both acute lymphoblastic leukemia (ALL) and Ewing sarcoma (ES) are small round cell tumors, and it is difficult to differential diagnose them because of overlapping clinical, radiographic, histologic, and immunophenotypic features. PATIENT'S CONCERNS A 5-year-old boy was admitted to our hospital because of pains in his left leg without obvious inducement and lameness worsening with ...
متن کاملMicroRNAs in Ewing Sarcoma
MicroRNAs (miRs) have emerged recently as important regulators of gene expression in the cell. Frequently dysregulated in cancer, miRs have shed new light on molecular mechanisms of oncogenesis, and have generated substantial interest as biomarkers, and novel therapeutic agents and targets. Recently, a number of studies have examined miR biology in Ewing sarcoma. Findings indicate that alterati...
متن کاملEwing Sarcoma Family of Tumors
The Ewing sarcoma family of tumors (ESFT) consists of a group of tumors characterized by morphologically similar round-cell neoplasm and by the presence of a common chromosomal translocation. Although rare, such tumors constitute the third most frequent primary sarcoma of bone after osteosarcoma and chondrosarcoma. ESFT most commonly affects young children and adolescents. Because most patients...
متن کاملEwing sarcoma family of tumors.
The Ewing sarcoma family of tumors (ESFT) comprises morphologically heterogeneous tumors that are characterized by nonrandom chromosomal translocations involving the EWS gene and one of several members of the ETS family of transcription factors. The translocation t(11;22)(q24;q12) is the most common and leads to the formation of the EWS-FLI1 fusion protein, which contributes to ESFT pathogenesi...
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ژورنال
عنوان ژورنال: American Journal of Clinical Pathology
سال: 2001
ISSN: 0002-9173,1943-7722
DOI: 10.1309/k1xj-6cxr-bqqu-v255