Oncology FISH Analysis - BCL6 Rearrangement

Casandra

Casandra Test Code BA99353Version 1 (DRAFT)

Performing Lab

Lab Baylor GeneticsLab Test ID 8775CPT Codes 88237, 88271, 88275, 88291

Oncology FISH Analysis - BCL6 Rearrangement

Clinical Use

Use

Oncology FISH Analysis - BCL6 Rearrangement is a meticulous test for detecting chromosomal alterations linked with non-Hodgkin's lymphoma (NHL). It specifically identifies the BCL-6 locus rearrangement—critical given its association with lymphoma prognosis. Typically, an increase in BCL-6 expression is deemed favorable, although the implications of BCL-6 translocation remain uncertain. This test is indispensable for those with a suspected NHL diagnosis, especially when other cytogenetic assessments have faltered. Its results, however, should always be evaluated alongside relevant clinical information and should never serve as the sole basis for diagnosing non-Hodgkin's lymphoma.

Special Instructions

Referral to this test is advised in cases with clinical suspicion of non-Hodgkin’s lymphoma or previous cytogenetic testing failures. Always correlate results with clinical and pathological data for accurate interpretation. The test is critical for monitoring treatment efficacy and patient prognosis when lymphoma is diagnosed. Ensure the lab receives complete clinical information to guide interpretation effectively. Consult with a genetic counselor for comprehensive understanding and implications of results.

Limitations

The FISH assay is adept at identifying rearrangements and alterations at the BCL6 locus, yet it cannot discern additional translocations with partner chromosomes. The contextual interpretation of results is vital, as they shouldn't be used independently for NHL diagnostics—clinical and pathological data must inform the conclusions.

Test Details