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HelpTest ID: NGCLN MayoComplete Chronic Lymphoid Neoplasms, Next-Generation Sequencing, Varies
Shipping Instructions
Whole blood, bone marrow aspirate, and body fluid specimens must arrive within 14 days of collection.
Specimen Required
Submit only 1 of the following specimens:
Specimen Type: Bone marrow aspirate
Container/Tube:
Preferred: Lavender or pink top EDTA) or yellow top (ACD)
Acceptable: Green top (sodium heparin)
Specimen Volume: 2 mL
Collection Instructions:
1. Invert several times to mix bone marrow.
2. Send bone marrow specimen in original tube. Do not aliquot.
3. Label specimen as bone marrow.
Specimen Stability Information: Ambient (preferred) 14 days/Refrigerate
Specimen Type: Whole blood
Container/Tube:
Preferred: Lavender or pink top (EDTA) or yellow top (ACD)
Acceptable: Green top (sodium heparin)
Specimen Volume: 3 mL
Collection Instructions:
1. Invert several times to mix peripheral blood.
2. Send whole blood specimen in original tube. Do not aliquot.
3. Label specimen as peripheral blood.
Specimen Stability Information: Ambient (preferred) 14 days/Refrigerate
Specimen Type: Paraffin-embedded tissue
Container/ Tube: Paraffin block
Collection Instructions:
1. Send 1 representative slide stained with hematoxylin and eosin
2. Minimum amount of tumor nuclei is 20%
3. Required amount of tissue area is at least 25 mm(2)
4. Tissue should be fixed in 10% neutral-buffered formalin. Other fixatives are not acceptable.
5. Decalcified specimens (eg, bone marrow core biopsies) are not acceptable.
Specimen Stability Information: Ambient
Specimen Type: Tissue slide
Slides: 10 unstained slides
Container/ Tube: Transport in plastic slide holders.
Collection Instructions:
1. Send 10 unstained, nonbaked slides with 5-micron thick sections of tissue and 1 representative slide stained with hematoxylin and eosin.
2. Minimum amount of tumor nuclei is 20%
3. Required amount of tissue area is at least 25 mm(2)
4. Tissue should be fixed in 10% neutral-buffered formalin. Other fixatives are not acceptable.
5. Decalcified specimens (eg, bone marrow core biopsies) are not acceptable.
Specimen Stability Information: Ambient
Specimen Type: Frozen tissue
Container/Tube: Plastic container
Specimen Volume: 100 mg
Collection Instructions: Freeze tissue within 1 hour of collection
Specimen Stability Information: Frozen
Specimen Type: Body fluid
Container/Tube: Sterile container
Specimen Volume: 5 mL
Specimen Stability Information: Refrigerated 14 days/Frozen
Specimen Type: Extracted DNA
Container/Tube: 1.5- to 2-mL tube
Specimen Volume: Entire specimen
Collection Instructions:
1. Label specimen as extracted DNA and source of specimen.
2. Indicate volume and concentration of DNA on label.
Specimen Stability Information: Frozen (preferred)/Refrigerated/Ambient
Forms
Useful For
Aiding in establishing diagnosis, refining prognosis, and potentially identifying targeted therapies for the optimal management of patients with chronic or low-grade B-cell lymphoid neoplasms
Genetics Test Information
This test includes next-generation sequencing to evaluate the following 25 genes and select intronic regions: ATM, BCL2, BIRC3, BRAF, BTG1, BTK, CCND1, CDKN2A, CXCR4, DDX3X, EZH2, FBXW7, KLF2, KRAS, MAP2K1, MYD88, NOTCH1, NOTCH2, NRAS, PIK3CA, PLCG2, SF3B1, TNFAIP3, TP53, and XPO1. For a list of genes and exons targeted by this test, see Targeted Genes Interrogated by MayoComplete Chronic Lymphoid Neoplasms Next-Generation Sequencing.
Method Name
Next-Generation Sequencing (NGS)
Reporting Name
Chronic Lymphoid Neoplasms, NGS, VSpecimen Type
VariesSpecimen Minimum Volume
Whole blood, bone marrow aspirate, body fluid: 1 mL; Frozen tissue: 50 mg; Extracted DNA: 100 microliters (mcL) at 20 ng/mcL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Varies | Varies | 14 days |
Clinical Information
This test is intended to evaluate a targeted set of genes involved in a heterogeneous group of chronic lymphoid neoplasms that includes chronic lymphocytic leukemia (CLL) and various low-grade B-cell lymphomas. The test includes actionable targets to aid in the differential diagnosis of low-grade B-cell lymphomas (eg, hairy cell leukemia, lymphoplasmacytic lymphoma, splenic marginal zone lymphoma), predict prognosis (eg, risk stratification in CLL), and evaluate therapeutic options or efficacy (eg, ibrutinib therapy in CLL, EZH2 [enhancer of zeste homolog 2] inhibitors in follicular lymphoma). Genomic analysis by next-generation sequencing is complementary to the standard evaluation in the classification and management of patients with chronic lymphoid neoplasms.
Reference Values
An interpretive report will be provided.
Interpretation
Genomic variants detected by this test will be documented in a detailed laboratory-issued report. This report will contain information regarding the detected alterations and their associations with prognosis or possible therapeutic implications in chronic lymphoid neoplasms. The information in the clinical report may be used by the patient’s clinician to help guide decisions concerning management. Final interpretation of next-generation sequencing results requires correlation with all relevant clinical, pathologic, and laboratory findings and is the responsibility of the managing clinician.
Clinical Reference
1. Swerdlow S, Campo E, Harris NL, et al, eds. WHO Classification of Tumours of Haematopoietic and Lymphoid Tissues. 4th ed. IARC Press; 2017. WHO Classification of Tumours, Vol 2
2. Onaindia A, Medeiros LJ, Patel KP. Clinical utility of recently identified diagnostic, prognostic, and predictive molecular biomarkers in mature B-cell neoplasms. Mod Pathol. 2017;30(10):1338-1366. doi:10.1038/modpathol.2017.58
3. Jajosky AA, Havens NP, Sadri N, et al. Clinical utility of targeted next-generation sequencing in the evaluation of low-grade lymphoproliferative disorders. Am J Clin Pathol. 2021;156(3):433-444
4. Davis AR, Stone SL, Oran AR, et al. Targeted massively parallel sequencing of mature lymphoid neoplasms: assessment of empirical application and diagnostic utility in routine clinical practice. Mod Pathol. 2021;34(5):904-921
5. Stewart JP, Gazdova J, Darzentas N, et al. Validation of the EuroClonality-NGS DNA capture panel as an integrated genomic tool for lymphoproliferative disorders. Blood Adv. 2021;5(16):3188-3198
6. Treon SP, Cao Y, Xu L, Yang G, Liu X, Hunter ZR. Somatic mutations in MYD88 and CXCR4 are determinants of clinical presentation and overall survival in Waldenstrom macroglobulinemia. Blood. 2014;123(18):2791-2796. doi:10.1182/blood-2014-01-550905
7. Morin RD, Arthur SE, Assouline S. Treating lymphoma is now a bit EZ-er. Blood Adv. 2021;5(8):2256-2263
8. Thangavadivel S, Byrd JC. Gly101Val BCL2 Mutation: One step closer to understanding Venetoclax resistance in CLL. Cancer Discov. 2019;9(3):320-322. doi:10.1158/2159-8290.CD-19-0029
9. Lee J, Wang YL. Prognostic and predictive molecular biomarkers in chronic lymphocytic leukemia. J Mol Diagn. 2020;22(9):1114-1125
10. Liebers N, Roider T, Bohn JP, et al. BRAF inhibitor treatment in classic hairy cell leukemia: a long-term follow-up study of patients treated outside clinical trials. Leukemia. 2020;34(5):1454-1457
Day(s) Performed
Monday through Friday
Report Available
16 to 21 daysTest Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
81450
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| NGCLN | Chronic Lymphoid Neoplasms, NGS, V | 104238-1 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| MP065 | Specimen Type | 31208-2 |
| MP066 | Indication for Test | 42349-1 |
| 618485 | NGCLN Result | No LOINC Needed |
| 618486 | Pathogenic Mutations Detected | 82939-0 |
| 618487 | Interpretation | 69047-9 |
| 618489 | Variants of Unknown Significance | 93367-1 |
| 618490 | Additional Information | 48767-8 |
| 618488 | Clinical Trials | 82786-5 |
| 618491 | Method Summary | 85069-3 |
| 618492 | Disclaimer | 62364-5 |
| 618493 | Panel Gene List | 36908-2 |
| 618494 | Reviewed By | 18771-6 |