Casandra
Casandra Test Code NG87664Version 1 (DRAFT)
Performing Lab
TdT (Terminal Deoxynucleotidyl Transferase)
Clinical Use
Order TestUse
TdT is a highly specific marker for the diagnosis and classification of acute lymphoblastic lymphoma/leukemias. Its expression is most valuable when distinguishing between lymphoblastic lymphoma and Burkitt lymphoma.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
New York Approved
Methodology
Immunoassay (IHC)
Biomarkers
TdT (Terminal Deoxynucleotidyl Transferase)
ProteinExpression
Expression • Ordinal Score (e.g., TPS, CPS, H-score)
Result Turnaround Time
Not provided.
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Tissue (FFPE)
Volume
Not provided
Minimum Volume
Not provided
Collection Instructions
FFPE tissue block preferred; or one unbaked unstained H&E slide (required) and two to three positively charged unstained slides cut at 4‑5 microns. Block and slide identifiers must match specimen ID and requisition.
Storage Instructions
Use cold pack for transport, not in direct contact with specimen. NYS clients: provide date and time of collection.