A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Follicular Lymphoma, BCL-2/JH t(14;18), Real-Time PCR, Cell-based
Test Code15007
CPT Codes
81278<br />
Preferred Specimen
5 mL bone marrow or whole blood collected in an EDTA (lavender-top) tube
Minimum Volume
1 mL
Other Acceptable Specimens
Fresh (unfixed) tissue • Frozen tissue • Formalin-fixed, paraffin-embedded tissue block • Tissue in neutral buffered formalin • Tissue (biopsy)
Instructions
Whole blood or bone marrow: Collect in an EDTA (lavender-top) tube. Ship refrigerated or room temperature. Do not ship frozen. Stability of whole blood and bone marrow samples at room temperature is 1 week and refrigerated is 2 weeks.
Paraffin blocks: Ship at room temperature. Stability for paraffin blocks is indefinite.
Tissue samples: Fresh frozen tissue is preferred and to be shipped frozen. Frozen tissue is stable for approximately 1 year at -70° C.
Fresh (unfixed) tissue: Must be in RPMI. Tissues in formalin fixative or RPMI are to be shipped at room temperature or refrigerated. Identify what fixative or media is used and write it on the sample container.
Paraffin blocks: Ship at room temperature. Stability for paraffin blocks is indefinite.
Tissue samples: Fresh frozen tissue is preferred and to be shipped frozen. Frozen tissue is stable for approximately 1 year at -70° C.
Fresh (unfixed) tissue: Must be in RPMI. Tissues in formalin fixative or RPMI are to be shipped at room temperature or refrigerated. Identify what fixative or media is used and write it on the sample container.
Transport Temperature
See Collection Instructions
Specimen Stability
Whole blood or Bone marrow
Room temperature: 7 days
Refrigerated: 14 days
Frozen -20°C: See Collection Instructions
Frozen -70°C: 1 year
Formalin fixed paraffin embedded tissue
Room temperature: Indefinite
Fresh (unfixed) tissue, Biopsy, Fixed tissue or Tissue in neutral buffered formalin
Frozen -70°C: 1 Year
Room temperature: 7 days
Refrigerated: 14 days
Frozen -20°C: See Collection Instructions
Frozen -70°C: 1 year
Formalin fixed paraffin embedded tissue
Room temperature: Indefinite
Fresh (unfixed) tissue, Biopsy, Fixed tissue or Tissue in neutral buffered formalin
Frozen -70°C: 1 Year
Methodology
Real-Time Polymerase Chain Reaction
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
A.M. Sets up 1 day a week.
Clinical Significance
Follicular lymphoma is the most common type of non-Hodgkin's lymphoma in the United States. Up to 90% of follicular lymphomas carry BCL-2/JH t(14;18) (q32;Q21) chromosome translocation. The presence of the BCL-2 translocation has been associated with poor prognosis in one group of diffuse large-cell and follicular lymphoma patients. Analysis of BCL-2 translocations provides an important marker for detection and monitoring of malignancy during patient treatment and follow up.