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B-cell Immunoglobulin Heavy Chain Gene Rearrangement by PCR

Test Code

M BCELL

Test Synonyms

B-cell gene rearrangement

Associations

B-cell leukemia, Lymphoma

Methodology

Polymerase chain reaction (PCR), Capillary gel electrophoresis

Turnaround Time

3-5 days

Specimen Requirements

5.0 mL (min. 3.0 mL) whole blood EDTA or Sodium Heparin
3.0 mL (min. 1.0 mL) bone marrow EDTA or Sodium Heparin
5 mm^3 bone marrow core biopsy, fresh tissue or frozen tissue in MPLN RPMI
3.0 mL (min. 2.0 mL) FNA in MPLN RPMI medium
Formalin fixed paraffin embedded tissue

Specimen Stability
EDTA whole blood or bone marrow stable at 18-25°C for 72 hours
Bone marrow biopsy, fresh tissue or FNA in MPLN RPMI at 2-8°C stable for 72 hours
Frozen tissue frozen at 20°C stable indefinitely
Paraffin embedded tissue at 18-25°C stable indefinitely
Storage & Handling

EDTA whole blood, bone marrow, bone marrow biopsy, fresh tissue or FNA, ship in a Styrofoam container with a cool/refrigerated pack. (Do not allow the cool pack to directly contact the sample.)
Frozen tissue, ship on dry ice.
Paraffin embedded tissue, ship ambient.

Causes for Rejection

Insufficient volume; Specimen at incorrect temperature; Incorrect anticoagulant or fixative

Reference Range

No rearrangement detected (germline)

Description

Evaluation for suspected clonal B-cell lymphoproliferations when morphologic, immunochemical and/or flow cytometry analyses are inconclusive.

References
  1. Langerak AW et al. (2007). Polymerase chain reaction-based clonality testing in tissue samples with reactive lymphoproliferations: usefulness and pitfalls. Report of the BIOMED-2 Concerted Action BMH4-CT98-3936. Leukemia. 21:222-229.
  2. Liu H et al. (2007). A practical strategy for the routine use of BIOMED-2 PCR assays for the detection of B- and T-cell clonality in diagnostic haematopathology. Br J Haematol. 138:31-43.
  3. Van Dongen JJM et al. (2003). Design and standardization of PCR primers and protocols for detection and clonal immunoglobulin and T cell receptor gene recombinations in suspect lymphoproliferations: Report of the BIOMED-2 Concerned Action BMH4-CT98-3936. Leukemia. 17:2257-2317.
  4. Van Krieken JHJM et al. (2007). Improved reliability of lymphoma diagnosis via PCR-based clonality testing: Report of the BIOMED-2 Concerted Action BHMA-CT98-3936. Leukemia. 21:201-206.