Methodology
Immunohistochemistry (IHC)
Test Description
MAL is a distinct molecular marker of primary mediastinal large B-cell lymphoma subtype among diffuse large B-cell lymphomas.
Specimen Requirements
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A formalin-fixed, paraffin-embedded (FFPE) tissue block is preferred specimen type
or
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One (1) unbaked, unstained slide for H&E staining (required) and two to three (2-3) positively charged unstained slides (all cut at 4-5 microns) for each test/antibody ordered
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Block and slide identifiers should be clearly written and match exactly with the specimen ID and specimen labeling as noted on the requisition.
Storage and Transportation
Use cold pack for transport, making sure cold pack is not in direct contact with specimen.
CPT Code(s)*
88342x1 or 88341x1
Turnaround Time
Tech-Only (stain only): 24 hours
Level of Service
Stain Only