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Test Code TTFK5 Thyroid Transcription Factor 1 (TTF1) (SPT24) and Keratin 5 (KRT5) Immunostain, Technical Component Only


Advisory Information


This test includes only technical performance of the stain (no pathologist interpretation is performed). If diagnostic consultation by a pathologist is required order PATHC / Pathology Consultation.



Shipping Instructions


Attach the green pathology address label and the pink Immunostain Technical Only label included in the kit to the outside of the transport container.



Specimen Required


Supplies: Immunostain Technical Only Envelope (T693)

Specimen Type: Tissue

Preferred: 2 Unstained positively charged glass slide (25- x 75- x 1-mm) per test ordered; sections 4-microns thick.

Acceptable: Formalin-fixed, paraffin-embedded (FFPE) tissue block


Useful For

Thyroid transcription factor 1aids in the classification of carcinomas of unknown origin

 

Keratin 5 aids in the identification of squamous cell carcinoma

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
IHMTO IHC Multiplex, Tech Only No No

Method Name

Immunohistochemistry (IHC)

Reporting Name

TTF1(SPT24) + KRT5 IHC, Tech Only

Specimen Type

TECHONLY

Specimen Stability Information

Specimen Type Temperature Time Special Container
TECHONLY Ambient (preferred)
  Refrigerated 

Day(s) and Time(s) Performed

Monday through Friday

Performing Laboratory

Mayo Clinic Laboratories in Rochester

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

88344-TC

LOINC Code Information

Test ID Test Order Name Order LOINC Value
TTFK5 TTF1(SPT24) + KRT5 IHC, Tech Only Order only;no result

 

Result ID Test Result Name Result LOINC Value
70801 TTF1(SPT24) + KRT5 IHC, Tech Only Bill only; no result

Forms

If not ordering electronically, complete, print, and send a Immunohistochemical (IHC)/In Situ Hybridization (ISH) Stains Request (T763) with the specimen.