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ERG is a member of the ETS transcription factor gene family, whose members also include FLI1 and ETS1. It is strongly expressed in endothelial cells and is a highly sensitive and specific marker of vascular neoplasms. Amongst carcinomas, expression of ERG is highly restricted to a subset (40-50%) of prostatic adenocarcinomas. (Miettinen M et al., Am J Surg Pathol. 35:432-41, 2011; Yaskiv O et al., Am J Clin Pathol 138:803-10, 2012). Subcellular Localization: Nuclear
Disease State: Spindle Cell Tumors / Sarcoma Subtyping
CPT Code(s): 88342 or 88341 (reference only; CPTs may vary)
Turnaround Time: Within 1-2 business days of receipt
Schedule: Monday - Friday
• Formalin-fixed, paraffin-embedded (FFPE) tissue block or cell block - OR - • 1 unstained slide for each test requested plus 3-4 additional unstained slides cut at 4µm