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BCH Order Code LAB3116 B-Cell Lymphoma, Specified FISH, Varies

Additional Codes

Mayo Test ID
BLPMF


Ordering Guidance


This test should only be ordered if the sample is known to have a sufficient clonal B-cell population. If a flow cytometry result is available and does not identify a sufficient clonal B-cell population, this test order will be canceled, and no charges will be incurred

 

If specific probes are not included with this test order, the test may be canceled.

 

If either the break-apart MYC or the MYC/IGH D-FISH probe sets are requested in isolation, both probe sets will be performed concurrently to optimize the detection of MYC rearrangements.

 

For patients with B-cell acute lymphoblastic leukemia/lymphoma (B-ALL/LBL), order either BALAF / B-Cell Acute Lymphoblastic Leukemia/Lymphoma (ALL), FISH, Adult, Varies or BALPF / B-Cell Acute Lymphoblastic Leukemia/Lymphoma (ALL), FISH, Pediatric, Varies, depending on the age of the patient.

 

For testing paraffin-embedded tissue samples from patients with B-cell lymphoblastic Lymphoma, see BLBLF / B-Cell Lymphoblastic Leukemia/Lymphoma, FISH, Tissue.



Shipping Instructions


Advise Express Mail or equivalent if not on courier service.



Necessary Information


1. A list of probes requested for analysis is required. Probes available for this test are listed in the Testing Algorithm section.

2. A reason for testing and a flow cytometry and/or a bone marrow pathology report should be sent with each specimen The laboratory will not reject testing if this information is not provided, however appropriate testing and/or interpretation may be compromised or delayed in some instances. If this information is not provided, an appropriate indication for testing may be entered by Mayo Clinic Laboratories.



Specimen Required


Submit only 1 of the following specimens:

 

Preferred

Specimen Type: Bone marrow

Container/Tube:

Preferred: Yellow top (ACD)

Acceptable: Green top (heparin) or lavender top (EDTA)

Specimen Volume: 2-3 mL

Collection Instructions:

1. It is preferable to send the first aspirate from the bone marrow collection.

2. Invert several times to mix bone marrow.

 

Acceptable

Specimen Type: Blood

Container/Tube:

Preferred: Yellow top (ACD)

Acceptable: Green top (heparin) or lavender top (EDTA)

Specimen Volume: 6 mL

Collection Instructions: Invert several times to mix blood.


Useful For

Detecting a neoplastic clone associated with the common chromosome abnormalities seen in patients with various B-cell lymphomas

 

Tracking known chromosome abnormalities and response to therapy in patients with B-cell lymphoma

 

Evaluating specimens in which standard cytogenetic analysis is unsuccessful

Testing Algorithm

This test includes a charge for application of the first probe set (2 fluorescence in situ hybridization [FISH] probes) and professional interpretation of results. Additional charges will be incurred for all reflex probes performed. Analysis charges will be incurred based on the number of cells analyzed per probe set.

 

When this test and flow cytometry testing for leukemia/lymphoma are ordered concurrently, the flow cytometry result will be utilized to determine if sufficient clonal B-cells are available for FISH testing. If the result does not identify a sufficient clonal B-cell population, this FISH test order will be canceled, and no charges will be incurred.

 

When specified, any of the following probes will be performed:

8q24.1 rearrangement, MYC break-apart

t(2;8)(p12;q24.1), IGK/MYC fusion

t(8;14)(q24.1;q32), MYC/IGH fusion

t(8;22)(q24.1;q11.2), MYC/IGL fusion

t(3q27;var) rearrangement, BCL6 break-apart

t(18q21;var) rearrangment, BCL2 break-apart

t(11;14)(q13;q32), CCND1/IGH fusion

-17/17p-, TP53/D17Z1

7q-, D7Z1/7q32

 

Bone Marrow Staging for Known or Suspected Malignant Lymphoma Algorithm is available. see Special Instructions.

Method Name

Fluorescence In Situ Hybridization (FISH)

Reporting Name

B-cell Lymphoma, Specified FISH

Specimen Type

Varies

Specimen Minimum Volume

Blood: 2 mL
Bone Marrow: 1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Varies Ambient (preferred)
  Refrigerated 

Reference Values

An interpretive report will be provided.

Day(s) Performed

Monday through Friday

Report Available

7 to 10 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed, and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

88271 x2, 88275 x1, 88291 x1- FISH Probe, Analysis, Interpretation; 1 probe set

88271 x2, 88275 x1 – FISH Probe, Analysis; each additional probe set (if appropriate)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
BLPMF B-cell Lymphoma, Specified FISH In Process

 

Result ID Test Result Name Result LOINC Value
614229 Result Summary 50397-9
614230 Interpretation 69965-2
614231 Result Table 93356-4
614232 Result 62356-1
GC105 Reason for Referral 42349-1
GC106 Probes Requested 78040-3
GC107 Specimen 31208-2
614233 Source 31208-2
614234 Method 31208-2
614235 Additional Information 48767-8
614236 Disclaimer 62364-5
614237 Released By 18771-6

Forms

If not ordering electronically, complete, print, and send a Hematopathology/Cytogenetics Test Request (T726) with the specimen.