TdT

Synonyms

Terminal deoxynucleotidyl transferase

  • Tech Only CPT 88342.TC
  • Tech Pro CPT
  • PowerPath Code TDT
  • Schedule Monday - Friday
  • Turn Around Time Within 1-2 business days of receipt
  • Methodology IHC

Specimen Requirements

Formalin-fixed, paraffin embedded tissue block or cell block, or 1 unstained charged slide for each test requested plus 3-4 additional unstained slides cut at 4 microns. Adequate space on each slide for control tissue is required.

Diagnostic Utility

TdT is expressed in immature B-cells, T-cells. It expressed in the majority of acute lymphoblastic leukemias/lymphomas (ALL). It is also expressed in a small subset of acute myeloid leukemias. It can be used to distinguish between ALL and Burkitt lymphoma.

Vendor

Dako