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Test Code MPLVS MPL Exon 10 Mutation Detection, Varies

Reporting Name

MPL Exon 10 Mutation Detection, V

Useful For

Aiding in the distinction between a reactive cytosis and a myeloproliferative neoplasm

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Varies


Specimen Required


Submit only 1 of the following specimens:

 

Specimen Type: Peripheral blood

Container/Tube: Lavender top (EDTA) or yellow top (ACD)

Specimen Volume: 3 mL

Collections Instructions:

1. Invert several times to mix blood.

2. Send specimen in original tube.

3. Label specimen as blood.

Specimen Stability: Ambient (preferred)/Refrigerate

 

Specimen Type: Bone marrow

Container/Tube: Lavender top (EDTA) or yellow top (ACD)

Specimen Volume: 2 mL

Collections Instructions:

1. Invert several times to mix bone marrow.

2. Send specimens in original tube.

3. Label specimen as bone marrow.

Specimen Stability: Ambient (preferred)/Refrigerate

 

Specimen Type: Extracted DNA from blood or bone marrow

Container/Tube: 1.5- to 2- mL tube

Specimen Volume: Entire specimen

Collection Instructions: Label specimen as extracted DNA from blood or bone marrow and provide indication of volume and concentration of DNA.

Specimen Stability Information: Frozen (preferred)/Refrigerated/Ambient


Specimen Minimum Volume

Blood, Bone Marrow: 1 mL
Extracted DNA: 50 mcL at 20 ng/mcL concentration

Specimen Stability Information

Specimen Type Temperature Time Special Container
Varies Varies 7 days

Reference Values

An interpretive report will be provided.

Day(s) and Time(s) Performed

Monday through Friday

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 U.S. Food and Drug Administration.

CPT Code Information

81339-MPL (myeloproliferative leukemia virus oncogene, thrombopoietin receptor, TPOR) (eg, myeloproliferative disorder), exon 10 sequence

LOINC Code Information

Test ID Test Order Name Order LOINC Value
MPLVS MPL Exon 10 Mutation Detection, V 62948-5

 

Result ID Test Result Name Result LOINC Value
MP051 Specimen Type 31208-2
602600 Interpretation 69047-9
602601 Signing Pathologist 19139-5

Clinical Reference

1. Defour JP, Chachoua I, Pecquet C, Constantinescu SN: Oncogenic activation of MPL/thrombopoietin receptor by 17 mutations at W515: implications for myeloproliferative neoplasms. Leukemia 2016; 30:1214-1216. doi: 10.1038/leu.2015.271

2. Pikman Y, Lee BH, Mercher T, et al: MPLW515L is a novel somatic activating mutation in myelofibrosis with myeloid metaplasia. PLoS Med 2006;3:e270

3. Pardanani A, Levine R, Lasho T, et al: MPL515 mutations in myeloproliferative and other myeloid disorders: a study of 1182 patients. Blood 2006;15:3472-3476

4. Kilpivaara O, Levine RL: JAK2 and MPL mutations in myeloproliferative neoplasms: discovery and science. Leukemia 2008;22:1813-1817. doi: 10.1038/leu.2008.229

Method Description

Genomic DNA is extracted from the blood or bone marrow sample and the MPL exon 10 amplified using standard PCR. The entire exon 10 sequence is obtained using Sanger sequencing with analysis on an automated genetic analyzer.(Unpublished Mayo method)

Analytic Time

5 days

Reject Due To

Gross hemolysis Reject
Other Bone marrow biopsies, slides, paraffin shavings, moderately to severely clotted

Method Name

Mutation Detection in DNA using Sanger Sequencing

Forms

1. Hematopathology Patient Information (T676) in Special Instructions

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

Secondary ID

602599