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HelpTest Code TROP2 Trophoblast Antigen 2 (TROP2) Immunostain, Semi-Quantitative Immunohistochemistry, Manual
Shipping Instructions
Attach the green "Attention Pathology" address label (T498) to the outside of the transport container before putting into the courier mailer.
Necessary Information
A pathology/diagnostic report and a brief history are required.
Specimen Required
Specimen Type: Tissue
Supplies: Pathology Packaging Kit (T554)
Collection Instructions: Formalin-fixed, paraffin-embedded tissue block; or 3 unstained glass, positively-charged slides with 4-microns formalin-fixed, paraffin-embedded tissue
Additional Information: One slide will be stained with hematoxylin and eosin and returned.
Secondary ID
621064Useful For
Identification of breast and urinary cancer, among others
Method Name
Immunohistochemistry (IHC)
Specimen Type
SpecialSpecimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Special | Ambient (preferred) | ||
| Refrigerated | |||
Reject Due To
| Wet/frozen tissue Decalcified paraffin embedded tissue Cytology smears Non-formalin fixed tissue Nonparaffin embedded tissue Noncharged slides ProbeOn slides |
Reject |
Reference Values
An interpretive report will be provided.
Interpretation
Trophoblast antigen 2 is a membrane protein and immunohistochemical positivity is characterized by a membrane pattern of staining. Results are reported as percent positive cells and intensity of staining.
This result should be interpreted in the appropriate clinical context.
Method Description
Immunohistochemistry on sections of paraffin-embedded tissue.(Unpublished Mayo method)
Day(s) Performed
Monday through Friday
Report Available
5 to 7 daysSpecimen Retention Time
Until reportedPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
88360
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| TROP2 | TROP2, SemiQuant IHC, Manual | 105178-8 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 621065 | Interpretation | 59465-5 |
| 621624 | Participated in the Interpretation | No LOINC Needed |
| 621625 | Report electronically signed by | 19139-5 |
| 621626 | Material Received | 81178-6 |
| 621627 | Disclaimer | 62364-5 |
| 621628 | Case Number | 80398-1 |