ArticleVirchows Archiv : an international journal of pathology2014
The combination of CD99 and NKX2.2, a transcriptional target of EWSR1-FLI1, is highly specific for the diagnosis of Ewing sarcoma.
Article in Virchows Archiv : an international journal of pathology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 1 of them a synthesis that pooled it.
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Who cites it
61 citing papers in PubMed, 1 synthesis or guideline pooled it, 96 citations in OpenAlex.
- Introducing fluorescence guided surgery into orthopedic oncology: A systematic review of candidate protein targets for Ewing sarcoma.Journal of surgical oncology · 2018Pooled it
- Molecular Approaches to Diagnosis in Ewing Sarcoma: Fluorescence In Situ Hybridization (FISH).Methods in molecular biology (Clifton, N.J.) · 2027Article
- Primary Ewing sarcoma of the pancreas: A rare extraosseous presentation.Radiology case reports · 2026Article
- Chondrosarcoma: A comprehensive review of tumor biology, clinical behavior, and therapeutic advances.Cancer treatment reviews · 2026Review
- Surgical Management of Metastatic Extraskeletal Extradural Ewing Sarcoma of the Thoracic Spine in a Patient with Wiskott-Aldrich Syndrome and Hypertrophic Cardiomyopathy: A Case Report.Journal of neurological surgery reports · 2026Article
- Rib-Origin Ewing Sarcoma With Cranial Nerve Involvement From Orbital Metastasis: A Rare Case Report.Clinical case reports · 2026Article
- The Diagnostic Quandary of Primary Renal Ewing's Sarcoma onWorld journal of nuclear medicine · 2026Article
- Adult-Onset Primary Pleura Ewing Sarcoma With Recurrent Pleural Effusion: A Case Report and Literature Review.Respirology case reports · 2026Article
- Lumbar Ewing's Sarcoma Mimicking a Herniated Disc in a Young Adult: A Case Report.International medical case reports journal · 2026Article
- Diagnostic Utility of NKX3.1 in Mesenchymal Chondrosarcoma on Needle Biopsy: A Case Report of a Supraclavicular Soft Tissue Mass with Literature Review.Turk patoloji dergisi · 2026Article
- Case Report: A report of two cases and literature review: primary pulmonary Ewing sarcoma presenting with hemoptysis and back pain.Frontiers in oncology · 2026Article
- Diagnostic utility of NKX2.2 and CD99 in the central nervous system to distinguish Ewing sarcoma from its mimickers.Acta neuropathologica communications · 2025Article
- Article
- Extraosseous Ewing's Sarcoma of the Chest Wall: A Case Report and Review of Literature.Cureus · 2025Article
- Mandibular Metastatic Breast Cancer: A Rare Case Report with Diagnostic Challenge.Journal of dentistry (Shiraz, Iran) · 2025Article
- Ewing sarcoma extraosseous brain metastasis presenting with an intracranial hemorrhage: illustrative case.Journal of neurosurgery. Case lessons · 2025Article
- Case Report: Extra skeletal Ewing's sarcoma of mediastinum: clinical experience and literature review.Frontiers in oncology · 2025Article
- The Combined Immunohistochemical Expression of GLI1 and BCOR in Synovial Sarcomas for the Identification of Three Risk Groups and Their Prognostic Outcomes: A Study of 52 Patients.International journal of molecular sciences · 2024Article
- Article
- NK2 homeobox gene cluster: Functions and roles in human diseases.Genes & diseases · 2023Review
1 more citing papers are in PubMed but not listed here.
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6 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Ewing sarcoma (ES) is a high-grade malignant neoplasm primarily affecting children and young adults. The diagnosis of ES is often difficult because of its broad differential diagnosis comprising a diverse group of small round cell tumors (SRCTs). Although the identification of tumor type-specific fusion genes by molecular testing is the gold standard for the diagnosis of ES, such approaches are not always available in a routine pathology practice. Thus, a reliable immunohistochemical marker is required. A recent study using a limited number of tumor samples has shown that NKX2.2, a putative transcriptional target of EWSR1-FLI1, is a useful marker for the diagnosis of ES. In the present study, the immunohistochemical expression of NKX2.2 was evaluated on 46 genetically confirmed ES and 85 non-ES SRCTs, together with comparative assessment of CD99 and other molecular targets of EWSR1-FLI1, including NR0B1, E2F3, and EZH2. NKX2.2 was expressed in 37 (80 %) of the ES samples with a mostly diffuse and strong staining pattern, and 14 (16 %) of the non-ES SRCTs, including olfactory neuroblastomas, extraskeletal myxoid chondrosarcoma, mesenchymal chondrosarcoma, small cell carcinomas, and Merkel cell carcinoma, also expressed this marker. The sensitivity and specificity of the NKX2.2 expression in this cohort were 80 and 84 %, respectively. The specificity when combined with CD99 was 98 %, with exceptional expression of both markers in only two non-ES SRCTs, including one case each of mesenchymal chondrosarcoma and small cell carcinoma. NR0B1, E2F3, and EZH2 were less sensitive for specific markers for ES when applied singly or in any combination. In conclusion, the study reinforces that NKX2.2 is a useful immunohistochemical marker for ES, and that the combination of CD99 and NKX2.2 is a powerful diagnostic tool that can differentiate ES from other SRCTs.
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