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Alternate Test Names:
Immunoglobulin D heavy chain
Identifies: IgD, or immunoglobulin D heavy chain, a cytoplasmic protein strongly expressed by naive/mantle zone B cells and a small subset of plasma cells, and weakly expressed by germinal center B cells. A subset of B cell non-Hodgkin lymphomas, generally of germinal center or pre-germinal center origin, express IgD.
Subcellular Localization: Membranous
Disease State: Nodular Lymphocyte-Predominant Hodgkin Lymphoma
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