MSI Analysis (PCR)
Alias/Synonym: MSI
CPT Code: 81301
- Includes:
- Specimen Type, Preferred:
- Formalin fixed paraffin embedded tissue
- Specimen Type, Alternate:
- Sample Quantity, Preferred:
- 1 Block
- 8 Slides
- Sample Quantity, Minimum:
- 1 Block
- 5 Slides
- Transport Container:
- Paraffin block
- Unstained slides
- Transport Temperature:
- Room temperature
- Collection Instructions:
- Charged slides should be cut at 4-5 microns thick.
- Specimen Stability:
- Room temperature: Indefinite
- Rejection Criteria:
- Frozen
- Clinical Significance:
- Detects microsatellite instability (MSI) at the NCI-recommended loci for colorectal cancer.
- Limitations:
- Turnaround Time:
- 7 - 10 day(s)
- Reference Ranges:
- Cutoff value % based on assay sensitivity