Test Overview

Test Methodology

Fluorescence In Situ Hybridization (FISH)

Test Usage

This test detects rearrangements involving the MYC gene region (8q24) via fluorescence in situ hybridization (FISH) in formalin-fixed, paraffin-embedded tissue specimens. FISH is performed using a dual color break apart probe (Abbott Molecular) to qualitatively assess for the presence of MYC translocations that occur in B-cell lymphomas. Testing for MYC gene rearrangement may aid in the diagnosis of Burkitt lymphoma, and may indicate an aggressive clinical course in other B-cell lymphomas.

Reference Range*

Interpretive report provided.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

This test will detect rearrangements involving MYC, however it will not identify the translocation partner. In addition, this test may fail to detect a translocation in a sample with a low neoplastic burden.

Test Details

Days Test Performed

Monday - Thursday

Analytic Time

3 - 10 days

Soft Order Code

MCMYC

MiChart Code

MYC (8q24) Rearrangement by FISH

Synonyms

Laboratory

Molecular Diagnostics

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Specimen Requirements

Offsite Collection Instructions

A formalin-fixed, paraffin-embedded tissue block containing sufficient neoplastic cells is preferred. Unstained slides (3, 4-micron slides) with associated H&E stained slide are also acceptable. Decalcified tissue or other fixatives will be accepted and the assay attempted, however these may result in failed testing due to degraded nucleic acid. Both blocks and slides should be stored at room temperature.

Normal Volume

Formalin-fixed, paraffin-embedded tissue

Additional Information

By ordering this test the clinician acknowledges that informed consent has been obtained from the patient as required by applicable state or federal laws and the ordering clinician has authorization from the patient permitting MLabs to report the test results to the ordering clinician. Test includes pathologist interpretation of results billed as a separate additional charge. This test is not available without interpretation.

Billing Information

Fee Codes

CPT Code

88377-TC

New York State Approved

No

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