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Epic Code LAB3001 Microsatellite Instability (MSI)

Test Name Alias

Microsatellite Instability |MSI | HNPCC Screen |MMR Phenotype |RER Phenotype | 904

Interface Order Alias

11418

Quick Collect

Paraffin Block = Mark Tumor and Normal Other = Call lab for instruction

Specimen Requirements

Submit only one of the following specimens:


Specimen Type: Paraffin embedded tissue
Collection Instructions: The paraffin embedded tissue block(s) must include both normal and tumor tissue sections.  Areas of interest for testing must be marked in both the normal and tumor tissue sections on the paraffin block or on an accompanying slide.  The ATL Surgical Specimen form completed by the Pathologist must be submitted with the paraffin embedded tissue.


 

Specimen Type: Fresh tissue
Collection Instructions: Fresh biopsy tissue(s) must be flash frozen immediately after collection.  The tissue(s) must be transported on dry ice, and should be received and processed within 24 hours of collection.  The frozen tissue(s) must include both normal and tumor tissue sections.  The ATL Surgical Specimen form completed by the Pathologist must be submitted with the frozen tissue.

Specimen Stability

Laboratory Retention: Extracted DNA retained greater than 1 year.

Test Frequency

Available once per week, usual TAT less than 7 days.

Reference Range

Reference range not available at this time.

Performing Department

Molecular Diagnostics

Performing Department Laboratory Location

Corewell Health Advanced Technology Laboratory (ATL), Grand Rapids, MI

Methodology

Polymerase Chain Reation (PCR) of Short Tandem Repeat (STR)

CPT

81301

CDM Code

3108130101

Epic Test ID

1230100941

Reviewed Date

6/22/2023