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GATA3, IHC with Interpretation
Test Code92287
CPT Codes
88342
Preferred Specimen
Formalin-fixed, paraffin-embedded block submitted in an IHC specimen transport kit
Minimum Volume
3 slides
Other Acceptable Specimens
5 unstained, positively (+) charged slides
Instructions
Please include surgical pathology report. Do not reject.
Transport Temperature
Room temperature
Specimen Stability
Paraffin block
Room temperature: 5 years
Refrigerated: 5 years
Frozen: Unacceptable
Slides
Room temperature: 45 days
Refrigerated: 45 days
Frozen: Unacceptable
Room temperature: 5 years
Refrigerated: 5 years
Frozen: Unacceptable
Slides
Room temperature: 45 days
Refrigerated: 45 days
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
No tumor in blocks or slides
Methodology
Immunohistochemistry
Setup Schedule
Set up: Daily; Report available: 2-4 days
Reference Range
See Laboratory Report
Clinical Significance
Expressed primarily in breast and urothelial carcinomas, useful in work-up of carcinoma of unknown primary.