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Identifies a subset of epithelia and carcinomas. Published studies suggest that CK19 expression, along with expression of galectin-3 and HBME-1, is useful in differentiating papillary carcinomas of the thyroid from benign thyroid lesions. Subcellular Localization: Cytoplasmic
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