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Lab Test Dictionary

Lynch Syndrome Tumor Panel, IHC with Interp (91332)


Immunohistochemistry (IHC)


MSH2; MMR=mismatch repair; MLH1; Hereditary Nonpolyposis Colorectal Cancer (HNPCC); MSH6

Specimen Type


Performing Lab

Quest Diagnostics San Juan Capistrano

Epic ID

Other Reference Test

Lab Test Days


Standard TAT

2-3 Days

Collection Information

Specimen Required

1 Formalin-fixed, paraffin-embedded tissue block

Container Type

Paraffin Embedded Tissue Block

Collection Instructions

10 unstained, positively charged slides are also acceptable

Processing Information - Lab Use Only

Transport Temperature


Specimen Stability

Room Temp: Indefinite; Refrigerated: Indefinite; Frozen: Unacceptable

CPT Codes

88342, 88341 (x3)