Test Name: EMA


Methodology: IHC


Test Description

The antibody is very useful together with the monoclonal antibodies to leucocyte common antigen (Code M0701) and cytokeratin (Code M0821), which label cells of lymphoid and epithelial origin, respectively. In the classification of hematolymphoid neoplasms, the antibody labels Reed-Sternberg cells in nodular lymphocyte predominant Hodgkin’s lymphoma and neoplastic cells in a subset of anaplastic large cell lymphomas.


Specimen Requirements

A formalin-fixed, paraffin-embedded (FFPE) tissue block is preferred specimen type or one (1) unbaked, unstained slide cut at 4-5 microns for H&E staining (required) and two to three (2-3) positively charged unstained slides cut at 3-4 microns for each test/antibody ordered.


Storage and Transport

Use cold pack during transport of paraffin blocks and unstained slides. Cold pack should not be placed in direct contact with the specimen during shipping


Specimen Rejection Criteria

Click here to reference the specimen rejection criteria.


Turn Around Time (TAT): 2-3 Days


CPT Codes*: 88341, 88342, 88360


*The CPT codes provided with our Test Descriptions are based on AMA guidelines and are for informational purposes only. Correct CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed.