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TCL1 ***
- FISH
Probes: TCL1 (14q32.1)
Disease(s): mature T-cell leukemia, T-cell prolymphocytic leukemia (T-PLL), adult T-cell leukemia/lymphoma (ATLL)
Turnaround time
3-5 Days for both unfixed and FFPE specimens
Level of Service
- Global
- Technical Only
New York Approved: Yes
Specimen Requirements
Bone Marrow Aspirate: 1-2 mL sodium heparin tube. EDTA tube is acceptable. Peripheral Blood: 2-5 mL sodium heparin tube. EDTA tube is acceptable Fresh, Unfixed Tissue: Tissue in RPMI Fluids: Equal parts RPMI to specimen volume Paraffin block: Send paraffin block. Also send circled H&E slide for tech-only (required). *** Testing on this specimen type is not yet available for NY specimens.*** Cut slides: H&E slide (required) plus 4 unstained slides cut at 4-5 microns. Circle H&E slide for tech-only. Note: Please exclude biopsy needles, blades, and other foreign objects from transport tubes. These can compromise specimen viability and yield, and create hazards for employees.
Storage and Transportation
Use cold pack for transport, making sure cold pack is not in direct contact with specimen. NYS clients please provide date and time of Collection.
CPT Code(s)*
88377x1 manual or 88374x1 automated.
*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.
Last Updated: January 22, 2025