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Although the expression of MNDA was initially thought to be restricted to the myelomonocytic lineage, several studies have shown the expression of this protein by normal and neoplastic B lymphocytes. MNDA has been shown to be expressed in splenic marginal zone lymphomas, mantle cell lymphomas, nodal marginal zone lymphomas and hairy cell leukemia. MNDA (clone 253A) will be used as part of a larger IHC panel to help distinguish marginal zone B cell lymphoma (MZL) from follicle center-derived B cell lymphoma, particularly CD10-negative FL. Subcellular Localization: Almost entirely Nuclear
Organ: Blood/Bone Marrow
CPT Code(s): 88342 or 88341. The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
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