Test Directory

Test Code
NHLT
Test Name
Non-Hodgkin's Lymphoma (NHL) Panel by FISH (Tissue)
CPT Codes
8837726 X 8, 88377TC X 8
Included Tests
  • BCL6 , 3q27.3-q28 Rearrangement
  • MYC ,8q24.21 Rearrangement
  • IGH , 14q32.3 Rearrangement
  • MALT1 ,18q21.31-q21.32 Rearrangement
  • IGH::CCND1 (BCL1), t(11;14)
  • ALK , 2p23 Rearrangement
  • MYC::IGH, t(8;11)
  • IGH::BCL2, t(14;18)
  • Reflexed when appropriate: IGK and IGL
Expected Turnaround Time
3-5 business days
Clinical Utility

The NHL FISH panel is used for the detection of chromosome aberrations observed in lymphoma.

Specimen and Container Info

Specimen: Formalin-Fixed Paraffin Embedded (FFPE) Tissue Block or 9 slides from FFPET block, cut at 4 micron thickness and mounted on charged lysine slides with accompanying H&E slide indicating the region(s) of interest (ROI), if the entire specimen is not tumor.

Collection Instructions

Specimens should have an ischemia time of < 1 hour and a formalin fixation time of

6 - 72 hours.

Transport Instructions

Transport to the laboratory at room temperature.

Causes for Rejection
  • Specimen arriving without any form of patient identification (unlabeled)
  • FFPET sections that are not properly attached to the slide
  • FFPET sections with excessive cracks, splits or deterioration that would inhibit analysis
  • Broken FFPET slides
Methodology
FISH, Fluorescence In-Situ Hybridization
Reference Intervals

BCL6, 3q27 Breakapart Probe- Rearrangement:

In a normal cell, the expected signal pattern is two fused signals. In an abnormal cell with a rearrangement, the expected signal pattern is one red signal, one green signal, and one fused signal.

MYC, 8q24.21 Breakapart Probe-Rearrangement

In a normal cell, the expected signal pattern is two fused signals. In an abnormal cell with a rearrangement, the expected signal pattern is one red signal, one green signal, and one fused signal.

IGH, 14q32.3 Breakapart Probe-Rearrangement

In a normal cell, the expected signal pattern is two fused signals. In an abnormal cell with a rearrangement, the expected signal pattern is one red signal, one green signal, and one fused signal.

IGH::BCL2, t(14;18) Translocation Probe

In a normal cell, the expected signal pattern is two red signals and two green signals. In an abnormal cell containing a typical translocation, the expected signal pattern is one red signal, one green signal, and two fused signals.

MALT1, 18q21.3 Breakapart Probe-Rearrangement

In a normal cell, the expected signal pattern is two fused signals. In an abnormal cell with a rearrangement, the expected signal pattern is one red signal, one green signal, and one fused signal.

BCL1(CCND1)::IGH, t(11;14) Translocation Probe

In a normal cell, the expected signal pattern is two red signals and two green signals. In an abnormal cell containing a typical translocation, the expected signal pattern is one red signal, one green signal, and two fused signals.

ALK, 2p23 Breakapart Probe-Rearrangement

In a normal cell, the expected signal pattern is two fused signals. In an abnormal cell with a rearrangement, the expected signal pattern is one red signal, one green signal, and one fused signal.

MYC::IGH, t(8;14) Translocation Probe

In a normal cell, the expected signal pattern is two red signals and two green signals. In an abnormal cell containing a typical translocation, the expected signal pattern is one red signal, one green signal, and two fused signals

Performing Location
Roble Road Core Laboratory
Alternate Names
  • FISH NHL Panel
  • FISH NHL, Tissue
  • Associations:
  • Anaplastic Lymphoma Kinase (ALK)
  • Burkitt's Lymphoma (BL)
  • Diffuse Large B-cell Lymphoma (DLBCL)
  • Follicular Lymphoma (FL)
  • Mantle Cell Lymphoma (MCL)
Testing Schedule
Routine, Monday - Friday no holidays
Disease Group
Cytogenetic Tests