Specimen:

Various

Collection Medium:

Minimum:

5 ml blood in a lavender top or yellow top, 1 ml bone marrow aspirate 
in a lavender top or yellow top,  3 cu mm of fresh frozen tissue or 
Formalin-fixed, paraffin embedded tissue, body fluids in a lavender top 
or yellow top or lymph node aspirates in RPMI.

Delivery Instructions:

Submit specimen to laboratory as soon as possible after collection.

Testing Schedule:

Weekly

Analytic Time:

7 working days

Reference Range:

None

Comments:

DNA extracted from blood, bone marrow mononuclear cells or tissue is 
examined for rearrangement of T-cell receptor gamma (TCRG) genes.

Test
Limitations:

Specimens fixed in B5 fixative are unsuitable for testing.

Methodology:

Multiplex Polymerase Chain Reaction (PCR) followed by Fluorescence 
Capillary Electrophoresis

CPT Code:

83890, 83900, 83901, 83909 (x3), 83912
If paraffin block or fresh tissue is submitted, remove CPT code 83890 
and add 83907.