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HelpTest ID BLYM B-Cell Lymphoma, FISH, Tissue
Ordering Guidance
This assay detects chromosome abnormalities observed in paraffin-embedded tissue samples of patients with B-cell lymphoma. If a blood or bone marrow specimen is submitted, the test will be canceled and BLPF / B-Cell Lymphoma, FISH, Varies will be added and performed as the appropriate test.
Shipping Instructions
Advise Express Mail or equivalent if not on courier service.
Necessary Information
A reason for testing and pathology report are required in order for testing to be performed. Send information with specimen. Acceptable pathology reports include working drafts, preliminary pathology or surgical pathology reports.
Specimen Required
Submit only 1 of the following specimens:
Specimen Type: Lymph node
Preferred: Tissue block
Collection Instructions: Submit a formalin-fixed, paraffin-embedded (FFPE) tumor tissue block. Blocks prepared with alternative fixation methods may be acceptable; provide fixation method used.
Acceptable: Slides
Collection Instructions: For each probe set ordered, 2 consecutive, unstained, 5 micron-thick sections placed on positively charged slides, and 1 hematoxylin and eosin-stained slide.
Specimen Type: Solid tumor
Preferred: Tissue block
Collection Instructions: Submit a formalin-fixed, paraffin-embedded (FFPE) tumor tissue block. Blocks prepared with alternative fixation methods may be acceptable; provide fixation method used.
Acceptable: Slides
Collection Instructions: For each probe set ordered, 2 consecutive, unstained, 5 micron-thick sections placed on positively charged slides, and 1 hematoxylin and eosin-stained slide.
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 lymphomas
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| _PRAA | Probe, Each Additional (BLYM) | No, (Bill Only) | No |
Testing Algorithm
This test does not include a pathology consultation. If a pathology consultation is desired, PATHC / Pathology Consultation should be ordered and the appropriate fluorescence in situ hybridization (FISH) test will be ordered and performed at an additional charge. Mayo Hematopathology Consultants are involved in both the preanalytic (tissue adequacy and probe selection, when applicable) and postanalytic (interpretation of FISH results in context of specific case, when applicable) phases.
Depending on the lymphoma subtype suspected, the most appropriate probes to order are listed in the table: Common Chromosome Abnormalities in B-cell Lymphomas in Clinical Information.
If the patient is being tracked for known abnormalities, indicate which probes should be used.
A charge and CPT code is applied for each probe set hybridized, analyzed, and reported.
Initial probe sets are run and completed within 4 days. If, based on testing algorithms, results of the initial probe sets require reflex testing, complete results will be available within 10 days.
The following algorithms are available:
-Aggressive B-cell Lymphoma Diagnostic Algorithm
Special Instructions
Method Name
Fluorescence In Situ Hybridization (FISH)
Reporting Name
B-cell Lymphoma, FISH, TissueSpecimen Type
TissueSpecimen Minimum Volume
See Specimen Required
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Tissue | Ambient (preferred) | ||
| Refrigerated | |||
Reference Values
An interpretive report will be provided.
Day(s) Performed
Monday through Friday
Report Available
4 to 10 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test was developed using an analyte specific reagent. Its performance characteristics were 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
88377 (if 1 probe set)
88377 x 2 (if 2 probe sets)
88377 x 3 (if 3 probe sets)
88377 x 4 (if 4 probe sets)
88377 x 5 (if 5 probe sets)
88377 x 6 (if 6 probe sets)
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| BLYM | B-cell Lymphoma, FISH, Tissue | In Process |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 603063 | Result Summary | 50397-9 |
| 603064 | Interpretation | 69965-2 |
| 603065 | Result Table | 93356-4 |
| 603066 | Result | 62356-1 |
| GC026 | Reason for Referral | 42349-1 |
| 603067 | Specimen | 31208-2 |
| 603068 | Source | 85298-8 |
| 603069 | Tissue ID | 80398-1 |
| 603070 | Method | 85069-3 |
| 603071 | Additional Information | 48767-8 |
| 603072 | Disclaimer | 62364-5 |
| 603073 | Released By | 18771-6 |
NY State Approved
YesForms
If not ordering electronically, complete, print, and send a Hematopathology/Cytogenetics Test Request (T726) with the specimen.