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Proficiency Testing/EQA / 2026 Surveys / Anatomic Pathology /
Immunohistochemistry

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DNA MISMATCH REPAIR - MMR
MMR
Analytes/procedures in bold type are regulated for proficiency testing by the Centers for Medicare & Medicaid Services (CMS).

Procedure Challenges per Shipment Number of Shipments
MLH1 by IHC 10 Two shipments per year
MSH2 by IHC 10
MSH6 by IHC 10
PMS2 by IHC 10

If your laboratory performs DNA mismatch repair by molecular methods, see the MSI program.


Program Information

  • Four unstained cell line/tissue microarray slides for the immunohistochemical analysis of DNA mismatch repair proteins MLH1, MSH2, MSH6, and PMS2

Shipping Schedule

  • Shipment A: June 8
  • Shipment B: October 12






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