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Test ID MPCDS mSMART, Plasma Cell Proliferative Disorder, FISH, Bone Marrow


Specimen Required


Only orderable as part of a profile. For more information see MSMRT / Mayo Algorithmic Approach for Stratification of Myeloma and Risk-Adapted Therapy Report, Bone Marrow.

 

Specimen Type: Redirected bone marrow

Preferred: Yellow top (ACD)

Acceptable: Lavender top (EDTA) or green top (heparin)

Specimen Volume: 4 mL


Secondary ID

606090

Useful For

Detecting, at diagnosis, recurrent common high-risk chromosome abnormalities associated with multiple myeloma or other plasma cell proliferative disorders, using a laboratory-designated probe set algorithm

 

Identifying prognostic markers associated with multiple myeloma or other plasma cell proliferative disorders

Testing Algorithm

This test includes a charge for the probe application, analysis, and professional interpretation of results for 1 probe set (2 individual fluorescence in situ hybridization [FISH] probes) on pre-sorted plasma cells. Additional charges will be incurred for all reflex or additional probe sets performed. Analysis charges will be incurred based on the number of cells analyzed per probe set. If an insufficient number of plasma cells are available for analysis, no analysis charges will be incurred.

 

 If sufficient plasma cells are identified, the plasma cell FISH panel includes testing for the following abnormalities using the FISH probes listed:

1p loss/1q gain, CDKN2C/1q22 probe set

t(8q24.21;var) or MYC rearrangement, MYC break-apart probe set

t(14q32;var) or IGH rearrangement, IGH break-apart probe set

-17/17p-, TP53/D17Z1 probe set

 

If an IGH rearrangement is identified, appropriate reflex testing will be performed in an attempt to identify the translocation partner using the FISH probes listed:

t(4;14)(p16.3;q32) IGH::FGFR3 fusion, FGFR3/IGH probe set

t(6;14)(p21;q32) IGH::CCND3 fusion, CCND3/IGH probe set

t(11;14)(q13;q32) or IGH::CCND1 fusion, CCND1/IGH probe set

t(14;16)(q32;q23) IGH::MAF fusion, IGH/MAF probe set

t(14;20)(q32;q12) IGH::MAFB fusion, IGH/MAFB probe set

 

Hyperdiploidy, as determined by flow cytometry, will be incorporated into the final interpretation. For samples with an unsuccessful flow evaluation for hyperdiploidy and sufficient plasma cells, FISH testing for the following abnormalities will be performed using the probes listed:

+3 (trisomy 3) and/or +7 (trisomy 7), D3Z1/D7Z1 probe set

+9 (trisomy 9) and/or +15 (trisomy 15), D9Z1/D15Z4 probe set

  

Appropriate ancillary probes may be performed at consultant discretion to render comprehensive assessment. Any additional probes will have the results included within the final report and will be performed at an additional charge.

Specimen Type

Bone Marrow

Specimen Stability Information

Specimen Type Temperature Time
Bone Marrow Ambient (preferred)
  Refrigerated 

Reject Due To

All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Reference Values

Only orderable as part of a profile. For more information see MSMRT / Mayo Algorithmic Approach for Stratification of Myeloma and Risk-Adapted Therapy Report, Bone Marrow.

 

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

CPT Code Information

88271 x 2, 88274, 88291-FISH Probe, Analysis, Interpretation; 1 probe set

88271 x 2, 88274-FISH Probe, Analysis; each additional probe set (if appropriate)

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
MPCDB Probe, Each Additional (MPCDS) No, (Bill Only) No