Laboratory Services
IGH/BCL2 Translocation
Print this pageUpdated Test Information:
Test Description |
IGH/BCL2 Translocation
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Synonym(s) |
t(14;18); 14;18 translocation; IGH-BCL2 fusion; IGH-BCL2 translocation; Follicular Lymphoma; Diffuse Large Cell Lymphoma; Lymphoproliferative disorders |
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General Information |
Probes: IGH (14q32.33)/BCL2 (18q21.33) |
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Specimen Requirements |
Bone Marrow Aspirate and Peripheral Blood Formalin fixed paraffin embedded (FFPE) tissue blocks or |
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Additional Processing Details |
Transport to the testing lab at room temp is acceptable. Do not allow sample to overheat or freeze. Use cold pack for transport, making sure cold pack is not in direct contact with specimen. |
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Required Information |
Complete the Incyte Diagnostics hematology requisition with the patient's demographics and relevant clinical history. Label the specimen containers with patient's full name, second unique identifier, and specimen site/source. Please provide a copy of the patient's complete blood count (CBC) report. |
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Unacceptable Specimen Conditions |
Specimen containers without two (2) patient identifiers, specimens submitted in inappropriate collection media, frozen specimens. |
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Department (code) |
FISH |
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Methodology |
Fluorescence in-Situ Hybridization (FISH) |
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Estimated TAT |
Heme samples: 3-5 working days from receipt. FFPE samples: 4-7 working days from receipt. |
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Testing Schedule |
Monday-Friday |
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Retention |
Heme samples: 7 days after release of final report. FFPE Samples: |
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CPT Code(s) |
88377x1 manual |
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Performing Lab |
Incyte Diagnostics |
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Additional Information |
Clinical Significance: The IGH/BCL2 translocation is present in approximately 70-95% of cases of follicular lymphoma and 30% of diffuse large B-cell lymphomas. Analysis for t(14;18)(q32;q21) or variant BCL2 translocations is useful in distinguishing these lymphomas from other types of NHL.
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