A cell-surface associated protein expressed in both mature and immature T-lymphocytes and T-cell leukemia, as well as NK cells and a small subpopulation of normal and malignant B-cells. Useful in identifying T-cell leukemias and myeloid leukemias, while expression is often lost in mycosis fungoides.

Turnaround Time
24 hrs
Specimen Requirements

A formalin-fixed, paraffin-embedded (FFPE) tissue block is preferred specimen typeorOne (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 orderedBlock 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. Make sure cold pack is not in direct contact with specimen.

CPT Codes
88342 x 1 or 88341 x 1