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T-Cell Receptor Gamma Gene Rearrangement
Item |
Value |
Available Stat? |
No |
Test code |
TCRG |
Performed by |
Quest |
Sendout? |
yes |
Method |
PCR |
Container type |
Lavender top |
Amount to Collect |
|
Sample type |
Whole blood, bone marrow |
Preferred volume |
Whole blood |
5 mL |
Marrow |
1 mL |
|
Min. Volume |
|
Processing notes |
Do not aliquot or freeze. Store ambient and transport to CB. Order Quest test code 90509. |
Normal range |
|
Synonyms |
TCR Gamma; T-cell clonality |
Stability |
Room temperature 1 week, Refrigerated 1 week. |
Turn around times |
5 - 7 days |
Additional information |
This assay which interrogates the T-cell receptor gamma locus (TCRG) by a PCR method based on the BIOMED-2 consensus, is useful for establishing clonality of T-cell lymphoid neoplasms and identification of minimal residual disease or early recurrence in patients with a previous diagnosis of a T-cell neoplasm. It can be used in association with the T-cell receptor beta (TCRB) PCR assay (Test code 91446) since false-negative results can occur in up to 5-10% of T-cell malignancies when testing for TCRG PCR only. |
CPT coding |
81342-90, 84999-90 |
Last Updated |
8/7/2014 9:51:21 AM |
Entry Number |
1576 |